clean code, reformat long lines

Conflicts:
	src/org/totschnig/myexpenses/util/Utils.java
prepare move to In-App billing

Conflicts:
	src/org/totschnig/myexpenses/activity/CommonCommands.java
	src/org/totschnig/myexpenses/activity/MyPreferenceActivity.java
	src/org/totschnig/myexpenses/util/Utils.java
prepare move to In-App billing