change where textView KVO is added/removed. remove textView snapBackToPoint delegate callback.
edit text view notifications for refreshing view for placeholder text.
add NSLog macro
remove data detectors by default
remove scrollToBottom. now responsibility of subclass. closes #159.
Merge pull request #171 from tflhyl/feature/fix-bubble-position

Fix inconsistent bubble positioning (issue #153)
slight refactoring from PR #153
Merge branch 'develop'
comment header
update travis
update readme
update travis
begin unit tests
Update README.md
make tableview frame size of container and only set insets. RE: close #150
bump version to 4.0.0
Bump version to 3.4.5.
Merge branch 'develop' into feature/image-support

Conflicts:
	JSMessagesDemo.xcodeproj/xcshareddata/xcschemes/JSMessagesDemoTests.xcscheme
	JSMessagesViewController.podspec
	JSMessagesViewController/Classes/JSBubbleMessageCell.h
	JSMessagesViewController/Classes/JSBubbleView.m
	JSMessagesViewController/Classes/JSMessagesViewController.m
Bump version to 4.0.1.