made lot of refactoring and the app. upgraded gradle version as well
Merge branch 'master' into 1_jn_refactoring

Conflicts:
	.idea/.name
	.idea/copyright/profiles_settings.xml
	.idea/libraries/support_v4_19_0_1.xml
	AntiTheftCharge.iml
	app/app.iml
	app/build.gradle
	app/src/main/java/net/as93/MainActivity.java
	app/src/main/java/net/as93/PowerReciever.java
	app/src/main/java/net/as93/SettingsActivity.java
	app/src/main/res/layout/fragment_main.xml
	app/src/main/res/values/ids.xml
	gradle/wrapper/gradle-wrapper.properties
Added a dark theme to not affect the eyes when screen is turned on.
Merge pull request #1 from Lissy93/1_jn_refactoring

made lot of refactoring and the app. upgraded gradle version as well