About dialog: Add Qt version, adjust copyright text.
Add windeployqt.sh, instructions to BUILDING.rst.

windeployqt.sh automatically traces DLL dependencies and copies the
appropriate files to the build directory for manual execution or packaging.
Merge branch 'bin' into DF2014
Merge branch 'gitignore' into DF2014
Merge branch 'share' into DF2014
Merge branch 'travis' into DF2014
Merge branch 'windows' into DF2014