The new UsageTimer as being used in the benchmarks for the MeteoIO paper - comments and WIndows version pending.

Improving the help text (the timer now has at least 1 us resolution and up to the 1 ns, depending on the platform). Fixed a wrong commit for meteo_reading.

fixing some of the warnings found on Hera (sorry for not noticing before). All the size_t / unsigned int stuff will have to be addressed later

All the "#ifdef(_WIN)" have been replaced by "#ifdef(WIN)" for consistency. The message box code for Windows and osX has been reorganized, the console messages are now better colorized and the backtrace comes before the error message itself.

After compiling with -Weffc++, it appeared that lots of things could be done in initialization lists. Some of it has been done for this commit (but quite a few remain).

A new method has been added to the Timer class: restart() that resets and restarts the timer (even if not already running).

Small tweaks so that code::blocks on Windows also compiles MeteoIO correctly... (like a never ending story)

In SNIO, the METAFILE can now be optional (which means that the metadata remain nodata, the user has therefore to fill them himself). This is used by Snowpack.

After the Visual C++ compilation log from Raphael, some changes have been implemented: lots of warnigs about signed/unsigned fixed, some unreachable code removed, and some methods reimplemented for Windows. We are not there yet, but moving closer...

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. 

A new setAltitude() method has been added to Coords in order to be able to manually build stations from grided data and dem. A bug in Grid2DObject has been found that was reseting i,j,k to nodata when doing a gridify with i,j,k known. Better date parsing abilities have been implemented in IOUtils so that purely numerical dates as generated with the date format NUM can be parsed if *part* of a string in a meanigful way (useful for recovering dates from file names). 

A small Timer class has been added for easy code timing. This was in Alpine3D and had been imported from popc (with their agreement) and now quite heavily reworked.