Add newline escape to rst kv code.

Should fix https://github.com/kivy/kivy/issues/1541
Revert "Add newline escape to rst kv code."

This reverts commit a63019ad94bc0ef804908669e4130ad458c8ed17.
Revert "Fix multiple line, without newline escape code."

This reverts commit 03ab508ad2b7c248e0474059963072ddb5f43b96.
Revert "Update lang to allow comments on same line as code."

This reverts commit d2df17a596cd178f3219e8abd3124b16acb854c0.

Conflicts:
	kivy/lang.py
Allows comments in kv after a root level decleration.
Merge pull request #1922 from matham/lang-comment

Allows comments in kv after a root level decleration.
doc: added observation for on_touuch_move and on_touch_up events
doc: revisions to support.py
doc: revisions to README.md
doc: fixed code example for the storage module