Added two parameters to the StationData class: slope angle and slope azimuth (with setter and getters)

The popc version has been updated. It is far from perfect (lots of popc specific hacks), it lacks an IOManager parclass, but this is the minimum that we need for Alpine3D...

The ptr_to_function to ptr_to_object cast warning has been turned off (at least for gcc). This does not fix the core issue (that has to be dealt with by the future c++ standard), but at least we don't see it anymore...

A new group of classes has been created, under the meteolaws subdirectory. This contains various general meteorological laws, such as a sun radiation model, standard atmosphere, etc

The first implementation (not tested yet) of a non-linear least square fit algorithm has been implemented in the libfit1D. 

Several documentation issues have been fixed (obsolete code examples, etc) and classes grouped by modules. This should help the user to quickly locate the classes of interest. 

MeteoData now has an extra public member variable: StationData meta. It will hold the meta information of the measurment instead of dragging along a second vector<StationData> alongside the vector<MeteoData> everywhere.

This has huge implications: the IOInterface has been rewritten, subsequently changes need to be propagated into all plugins and all modules dealing with meta data.

Changes to StationData: new string stationID (shortname)  to describe a station in short, stationName shall be used for long description of a station. changes required an adaptation within the plugins

Changes to ConfigReader: comments may appear anywhere (also after key value pairs or section names), everything after a '#' or ';' is disregarded.

PGMIO: small fix: xllcorner mixed up with yllcorner

FilterAlgorithms: extrapolate algorithm refined

Overall all include statements within in the library have been replaced by angle brackets, the default install path for the include file is $CMAKE_INSTALL_DIR/include/meteoio, the meteoio libraries (static and shared) will be installed in $CMAKE_INSTALL_DIR/lib per default.

The plugins will be installed in the subdirectory $CMAKE_INSTALL_DIR/lib/meteoio/plugins

Most of the doxygen issues have been fixed. A few are still left (and we lost the inheritance structure in doxygen).

Changed the name of the Date_IO class to Date. In case of namespace conflicts, just use mio::Date to reference the MeteoIO Date class.

The << operator has been overloaded for a few types (Arrays, Grids, Coords, Dates, Meteo and Station data) and the to_String() methods removed (except for Dates because it might make sense there to get a string) as a way to provide easy debugging output. This makes the meteo_reading example even simpler! 

Finally, the implementation of issue 35 is here... A few bugs left with the Coords class have been fixed (namely, the methods take 1 optional parameter and not more, because for this usage scenario it was way too dangerous and the user (myself in this case!) could call the method with the wrong parameter left empty). New mebers have been added: grid_i and grid_j as well as methods to deal with them. These contain the grid indices matching the position. Since these indices depend on the chosen DEM/grid, they are NOT updated by Coords but by Grid2DObject or Grid3DObject instead. If the user calls Coords::setLatLon() or Coords::setXY(), then these grid parameters are reset to nodata.

A bug in a constructor of StationData has also been fixed (assigning a temporary object to a member of the class). Some bugs/unlucky deletes in the examples have been fixed (this is the price to pay for work too late at night!)

New constants "lat_epsilon" and "lon_epsilon" have been created in IOUtils. They represent the smallest latitude/longitude resolution (ie: two points within lat_epsilon are considered to have the same latitude)

The class Stationdata now properly uses the new Coords class. All usual dependencies have been fixed (A3DIO.cc) but not (yet) the optional plugins. The Coords class has been modified so that it computes the matching coordinates as soon as possible instead of the previous implementation that was delaying it as much as possible (thus making "const Coords..." impossible).

The includes have been cleaned up (compilation was failing because of multiple "using namespace" in header files) and all "using namespace" have been removed from header files (please don't put any of these back!!). The doxygen comments has been updated.

The license information has been added: LPGLv3 headers in all header files, license texts as well as a Linux Software Map entry file.

The installation procedure has been added to cmake configuration files (similar to the autotools)

The doxygen comments have been fixed and largely expanded: the welcome page is now populated and some general documentation proposed. 

The prototypes of the filters have been fixed (doxygen was complaining) so that we always use std:: when necessary.

The Grid3DObject checkCoordinates has been implemented along the same lines as Grid2DObject. The altitude is still missing though...

The check for POPC++ has been added to the autotools configuration. 

A small improvement to the way the A3DIO plugins handles incoming nodata has been done. A few HACKS have been fixed and removed. Some error messages (in libinterpol2D) have been improved, their printf relpaced by a std::cerr and an extra check (using assert) has been added so that no Td would be computed if Rh<0 (and we would throw an exception).

Trying to make the popc version work again... by adjusting the popc code to the latest changes. It does not work yet.

Nothing special, just some re-indentation in order to make the code lines clear and easy to run and understand.

Namespaces are now used (namespace IOUtils) so that only 1 nodata is defined and used. A few new fields have been added to Meteodata (namely, hs and rswr). 

The demo, test program has been updated so that it works with the current version of the library (but ImisIO is not usable yet).

The whole library has been given its new name and several classes have been renamed in order to better match their purpose. The Makefile has been modified accordingly.