Replacing assignement operators by direct assignement in constructor and some constification

The snowpack workflow does not provide a default start date anymore (there is no obvious choice) and the "now" date is rounded to the start of the day

Thanks to the includes, we are now much more granular. But more work is needed with better handling of defaults, more thoughts about colors and making sure all MeteoIO and Snowpack keys are represented.

The color scheme has been redesigned and now follows Solarized (https://en.wikipedia.org/wiki/Solarized_(color_scheme)). Instead of directly coding colors in the code, they have all received symbolic names and then the names are mapped to a specific color. On the long term, we will be able to offer several color schemes, like Solarized, osX, Windows, etc

Remove memory check for dummy Qt executable as this did not really prove useful in profiling and might be a little confusing.

Fix some memory leaks found by valgrind. Most importantly, a menu does not take ownership of a QAction.

Disable panels' context menus for grouping elements that could show up on a few pixels. Minor XML tweaks and (very) minor code optimization.

Improve SNOWPACK stability corrections documentation, and a try to make a setup with very many filters more readable.

order of declaration). Add log message if reference is n/a

In a Replicator, start from 0 if that's what's in the INI (e. g. STATION0). The + button will still always start at 1.

Add short info text about why the INIParser's == check asserts false, fix special case where an integer would be transformed to a float with decimals (thus failing the equality check)

Extend the TerminalView's context menu with a 'clear' entry. Add German translation for welcome text

Because there was no way to completely reset a Numbers panel (there can't not be a number in a spin box) this is now possible via a generic context menu in all panels. Restructure the menu a little to make these functions more clear

Another hotfix for propagating Replicator numbers... now, replace only the first occurrence of '#' so keys like 'TA::FILTER#::ARG#' work

Log INI errors in command line mode to console instead of opening a message box, and some readability.

Add description of ZRXP plugin to MeteoIO XML. Add XML shortcut 'h' for 'help', minor styling. Iniqueryparser handles substitutions in keys now. Remove obsolete warning.

Add missing documentation to iniqueryparser as well as an option to specify a code base path, minor cleanup. Correct typo in settings page

Correct wrong personal path for iniqueryparser, and add a check for that... as well as for missing read permissions. Dump minimal settings file with appropriate command line option. Fix bug where a settings XML would not be available yet. Minor cleanup.

Settings page is loaded

Make more complicated settings work by connecting Replicator items to the INIshell settings. Remove old popup menu mechanism to select folders. Add menu item to close settings.