add stacktraces to AppLog, fix #1132
use gradle to edit AndroidManifest.xmt to hide crashlytics apikey
use the crashlytics way to 'hide' the apikey
new crashlytics utils
init crashlytics
replace mixpanel calls to logexception with crashlytics
remove unused mixpanel ids to track exceptions
auto generate crashlytics.properties from local.properties
Merge branch 'develop' into feature/crashlytics-integration
init crashlytics only if isDebug=true
Merge branch 'develop' into feature/crashlytics-integration
use crashlytics to report OOM errors
add <br> tags when printing stacktraces
log catched exceptions in Crashlytics via AppLog.e() - only for release builds
Merge branch 'develop' into feature/crashlytics-integration
add a null check if the bitmap can't be decoded
Merge pull request #1174 from wordpress-mobile/feature/crashlytics-integration

Crashlytics integration
fix #1200
test reproducing #1202
fix XMLRPCClientCustomizableXMLMock to use parseXMLResponse with a null HTTPEntity