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
Merge branch 'master' into encrypt-files

Conflicts:
	AndroidStealth/src/main/java/content/ContentFragment.java
Tempfile usage in encrypt and decrypt
Merge branch 'master' into encrypt-files

Conflicts:
	AndroidStealth/src/main/java/content/ContentFragment.java
Working encryption and decryption

Decryption throws some weird error, which can be caught and ignored as far as I can see.

Fly-by-fix:
* Removed encrypt in ContentItem
* Removed decrypt in ContentItem
Fixed log message in copyFile
Moved everything to EncryptionService intent calls
Fancied up code, now only one method makes the intent calls
Added binding between EncryptionService and HomeActivity
Moved binding logic to onPause and onResume
Use of binding to service, now blocking again

I have:
* Used the binding with the service to call the service instead of using intents
* Have used the Future and Future.get() to wait for the encryption/decryption and notify the listeners
Code cleanup, catch undesired paths to EncryptionService

I've disabled the possibility of starting the EncryptionService through Intents; we want to use a binding. Trying to do so anyway will throw exceptions.
I've removed the notifyListeners() call in encryptItems/decryptItems. encryptItem and decryptItem handle this per item.
Merge branch 'master' into encrypt-files

Conflicts:
	AndroidStealth/src/main/java/com/stealth/android/HomeActivity.java
	AndroidStealth/src/main/java/content/ContentFragment.java
	AndroidStealth/src/main/java/content/ContentManager.java
Fixed context setting, demo is go
Merge branch 'master' into encrypt-files
Added callback structure to en/decryption

Using IOnResult<T> from @OlivierHokke, I've completed the concurrent approach of encrypting.
Merge pull request #45 from AlexKolpa/encrypt-files

Runs smooth as butter. Didn't run into any problems. Also ran encryption on 50MB files while exiting the app and returning etc. Worked nicely :) Not entirely 100% sure if your code is nice and neat because there are so many lines of untouched code that is also being replaced, that I can't see the wood for trees. But as far as I could see it seems nice :) 

merging