Simplified(?) interfaces + overall cleaning.
Cleaning.
Commenting etc.
Cleaning interfaces etc.
Comment.
Little improvements.
Got rid of ThreadLocal memory leak using ugly solution.
Added comment.
Added SharedIntegerWidget for demoing purposes.
Updated pom.xml
Merge branch 'seuraava' of github.com:ahn/vaadin-diffsync into seuraava
Cleaning.
Little change to client-side abstract interface.
Fixing synchronization.

Still probably things to do.
Changed DiffTask interface.
Fixed CollabTextArea cursor bug.