Improve Options->Display->OpenGL Options default control enable settings.
Merge pull request #174 from Ptizef/master

Correct broken file selection in grib dialog
Implement chart zoom detail slider.
Correct compiler warning on Windows.
3.3.2301 (Alpha test)
Correct ENC display shortcut keys for A(nchor) and L(ights)  (FS#1368)
Improve JumpToPosition() logic for large scale changes.
Install and utilize wxstd.mo for standard messages (FS#1553)
Add wxWidgets default message files (wxstd.mo)
Minor improvements preventing date-time jump when setting changed