fixed handling of location manager usage
wip
wip restructuring handlers
Merge branch 'master' into wip/alarm-listener

Conflicts:
	src/main/java/org/blitzortung/android/app/Main.java
alarm -> alert
fixed build errors
fixed histogram view display and more wip
alert listener integration
refactored listener interface to use of specific consumers
finaly fixed version with fully working location handler deactivation if no background mode is required
Merge pull request #38 from wuan/wip/alarm-listener

Wip/alarm listener