adding support for low battery mode in the client side, which can override default service-side behaviour.
TODO actually take action on low battery.
Remove receiver in manifest for low battery notifications. The code
already checks this as part of scanning. Also, it is inflexible as it
notfies on a set battery level -instead, the code should handle a
parameterized battery level.
Send turn off broadcast when battery is low
update translations
initial stab at getting automated tests around the LogActivityView
Update with these changes:
- System ACTION_BATTERY_CHANGED intent drives the battery check code
- In the ClientStumblerService, in the battery checking code, if the
  battery is low and the user starts the service manually, battery
checking is deactivated until the battery is ok again.
- Send a dedicated low battery intent from the ClientStumblerService on
  low battery. (Received by MainApp)
Merge pull request #1259 from cascheberg/translations

@cascheberg Update translations and add crash report heading
Added 0% battery option
Merge pull request #1261 from garvankeeley/low-battery-mode

Low battery mode: make client-side configurable
Filter duplicate log entries
modify GPS layout
hotfix for fixing hostnames that don't seem to resolve on DNS and
break the build
Merge pull request #1276 from crankycoder/fix_buggy_dns_host

hotfix for fixing hostnames that don't seem to resolve on DNS and break the build
Merge pull request #1275 from garvankeeley/log-filter-duplicates

Filter duplicate log entries
Merge pull request #1274 from cascheberg/fix

@cascheberg Large Text is on: show only GPS fixes label, hide visible
Merge pull request #1272 from crankycoder/features/1263-autoscroll-log

initial stab at getting automated tests around the LogActivityView
fix build break after merge
Merge branch 'dev' into features/1191-merged

Conflicts:
	android/build.gradle
	android/src/main/java/org/mozilla/mozstumbler/client/ClientPrefs.java
	android/src/main/java/org/mozilla/mozstumbler/client/subactivities/DeveloperActivity.java
	android/src/main/java/org/mozilla/mozstumbler/service/stumblerthread/scanners/ScanManager.java
	android/src/main/res/layout/fragment_developer_options.xml
	android/src/main/res/values/strings.xml