Provided empty methods in ContentManager and ContentItem for encrypting files
Added copyFile method that uses encryption, not finished nor tested
Adopted usage of spike solution by @AlexKolpa
Windows to linux
Added interaction diagrams
Merge branch 'master' into encrypt-files

Conflicts:
	AndroidStealth/src/main/java/content/ContentFragment.java
Added thumbnail diagram
Tempfile usage in encrypt and decrypt
Updated the notifications diagram for clarification
Minor update, forgot a message with an arrow
Added sources of icons
Hooray for consistancy... just realised im doing this in the wrong branch <3 anyway, will fix when UI_Icons is merged.
Oh and, what I was supposed to say in my previous commit: trying to see how it feels when text is added to the icons to clarify their meaning for full usability. I'm guessing the text is too small, but it's too early to tell with my Note 3. Will test on galaxy s2 when I fixed that phone.
Experimenting with colors. Sorry for continuing in this branch. Was easier :P
Test to see if action bar can be changed to reflect the current state of the files.
Remove app from 'Recently Used Apps' list.

Add the setting to the app main activity in the manifest file.
Merge branch 'master' into encrypt-files

Conflicts:
	AndroidStealth/src/main/java/content/ContentFragment.java
Merge branch 'master' of https://github.com/AlexKolpa/AndroidStealth into GUI

Conflicts:
	AndroidStealth/src/main/res/drawable-xxhdpi/ic_menu_share.png
Added camera button and added notifications. They now all show when app is opened, just to see how they look. Have to add functionality too them still.
Improved locking icon simply by a rotation, the key is now in action stance and the arrow is now at the bottom, so it is more distinguishable from the locking icon.