GCS Autofill GCS_YEAR with compile date
Make gcs template added GCS_REVISION_GITHUB tag
GCS Use new version strings and XKCD title on the version dialog
GCS/Added XKCD title to core constants
GCS Version: strip out XKCD title

This doesn't currently work on jenkins
GCS Version: remove XKCD info from dialog

This does not work on jenkins.
GCS Version: use date-hash consistently
qwt: more files from updating to qwt 6.1.1
qwt: delete unused file
pfd: Switching to QQuickWidget

Signed-off-by: James Cotton <peabody124@gmail.com>
welcome: Switching to QQuickWidget

Signed-off-by: James Cotton <peabody124@gmail.com>
Merge pull request #1409 from peabody124/version_dialog

Version dialog
Qt: update to 5.4
Merge pull request #1412 from peabody124/qt_5_4

Qt 5.4
Add HMC5983 I2C driver
Brain: Add HMC5983 external compass
WIP: MGRS support
some mgrs improvements
mgrs lib: use Unix line endings
Merge branch 'next' into brain