fix #2764: remove temporary caches after test
Fix #2773 - Include log author in GPX export
Fix #2707 - Reload images after notifyDataSetChanged
Merge pull request #2776 from campbeb/fix2773a

Fix #2773 - Include log author in GPX export
Merge pull request #2777 from campbeb/fix2707a

Fix #2707 - Reload images after notifyDataSetChanged
Merge branch 'release' into upstream
refactoring: separate TTS resources as a block
translation: add missing FR translations
fix: add missing escapes in French translation
Add log message for testing #2770
fix #2740: Bad title, when invoking c:geo from mail
fix #2771: cache archived status not updated on refresh
Merge branch 'issue-2771' into upstream
fix #2725: Circles on the map only around physical stages
Merge pull request #2779 from campbeb/test2770

Add log message for testing #2770
refactoring: this graph needs to go down:
http://ci.cgeo.org/job/c-geo/androidLint/trendDetails/?
fix #2750: delete OC username when resetting login information
refactoring: remove useless parent layout
refactoring: use proper relative layout to draw compass
refactoring: make periodic handler use weak references

PeriodicHandler now uses weak references to keep a link to the looper
that requested it. This way, it will not prevent the source from being
garbage collected even though a delayed message may be queued in the
handler.

Also, at the next iteration, the periodic handler will notice that its
starter looper has been garbage collected and will stop itself if it has
not been already.