Use the right resolution when requesting RTOFS model
Allow dragging and zooming and interactive zone limits computation while request dialog is opened
Correct Loop mode logic (fs#1217)
Add Inches of Mercury (inHG) (fs#1214)
Add the possibility to start at the nearest or current time forecast(fs#1200)

three options in the general setting dialog
- start at the beginning of the file (as before)
- start at the nearest time forecast
- start at the current time (with interpolation)
News and Corrected strings to be translated
Merge pull request #80 from Ptizef/master

Several improvements and bug fix