Update travis script to get it to work with current setup
Fix malformed travis yaml file
Hardcode target android version for the emulator to be created
Install platform-tools not sure if it's needed
Install SDK android-sdk_r23.0.2
Use new system image for the android versions
Use the right task for running test for all available flavours
Disable some tests temporarily
Issue#157: Now when we check "Use Sms Portals" option application send messages throuh installed Sms Portal packages.

Conflicts:
	smssync/src/main/java/org/addhen/smssync/Prefs.java
	smssync/src/main/java/org/addhen/smssync/Settings.java
	smssync/src/main/java/org/addhen/smssync/messages/ProcessSms.java
minor changes to sms portals settings.

made summary more concise and variable naming more consistent.

doc updates coming soon.

Conflicts:
	smssync/src/main/java/org/addhen/smssync/Settings.java
	smssync/src/main/res/values/strings.xml
	smssync/src/main/res/xml/preferences.xml
Issue#182: added sms-portals and modified gradle to build flavors