fixes #3303 - SimpleDirChooser shows all readable directories now
fix #3320: OAuth signing is wrong
new: search by name for opencaching
refactoring: findbugs cleanups
Fixes #3327, c:geo crashes on first fix

Handle GpsStatus.GPS_EVENT_FIRST_FIX as well
new: logging from compass activity
remove debug code

* search for caches around was searching a specific cache name (for OC
only)
refactoring: documentation
refactoring: silence findbug issue
refactoring: remove pause in download from maps

* the same pause has been removed for batch storing from cache lists
some time ago
refactoring: avoid mutable object state
build: disable 2 findbugs findings
fix #3328: save for offline not working
Merge pull request #3323 from marco-dev/fixDirChooser

fixes #3303 - SimpleDirChooser shows all readable directories now
fix: dir chooser shows multiple checkboxes

* happened when directories without sub directories where clicked
Update strings_not_translatable.xml
Fixes #3318, OC Authorization activity is black on black with light skin and Android 2.x

Apply DialogTheme which is Android 2.x aware
change: use long date format in field note export dialog
change: remove superfluous line break in export dialog
lint: fix layout warning