Merge pull request #110 from nightscout/wip/moretests

More tests
Update status icons to point to `dev`.
Add back binding the 'summary' field to the edit text values.

Tested:
  Manually.
Merge pull request #116 from nightscout/tr.summaryBinding

Add back binding the 'summary' field to the edit text values.
Fixes logging in the core module
Merge remote-tracking branch 'origin/dev' into 76-kl.mqttui

Conflicts:
	app/build.gradle
	app/src/main/res/xml/pref_main.xml
Fixing NPE for users that don't have existing configurations