When removing selected text, if it was insered by the same user it was marked as deleted insted of deleting it. Now it deletes the text
Merge branch 'master' into ifad

Conflicts:
	src/ice.js
remove unneeded code, integration test for insert and deletion
remove unused
merge with ifad, but no aditional functionality
removed mergeBlocks option
first list tests. firefox failing on one
firefox managing first list test
fix firefox behavior in example editor
simple image tests with compliance in Firefox and Webkit