Fixed the following points:
- Selections now stay on the correct view when scrolling
- Animations are completely fixed in the sense that views are not delayed with animating when scrolling. Also, when scrolling, no random views are suddenly animating.
- The indication whether a file is being processed now works by checking the queues of the encryption service.

Can't fix:
When selecting a file, and unlocking it, an action item unnecessarily gets thrown into a "..." element, but it won't open... Not sure how to fix this, seems like a bug.
Fixed the bug where selections could stay of items that do not exist anymore.
Merge branch 'master' of https://github.com/AlexKolpa/AndroidStealth into 157-content-ui-inconsistencies

Conflicts:
	AndroidStealth/src/main/java/content/ContentAdapter.java
Processed my own comments so I can merge this.
Merge pull request #158 from AlexKolpa/157-content-ui-inconsistencies

Consistent content items UI states