Merge pull request #3 from jgodi/master

Implementing more and a few fixes
Add PasswordTextBox widget and InputGroupAddon icon attribute
Code style/formatting
runTarget change to index.html
InputGroupAddon use IconTextMixin and add examples in demo page
Update sample code
PasswordTextBox code example
Bootbox.js Wrapper JSNI Implementation and demo examples
Fix iconTextMixin.addTextWidgetToParent() missing
Merge remote-tracking branch 'upstream/master'
Merge pull request #5 from koobe/master

Add PasswordTextBox widget and InputGroupAddon icon attribute
Merge remote-tracking branch 'remotes/svenjacobs/master'

Conflicts:
	gwtbootstrap3/src/main/java/com/svenjacobs/gwtbootstrap3/client/ui/Alert.java
	gwtbootstrap3/src/main/java/com/svenjacobs/gwtbootstrap3/client/ui/PasswordTextBox.java
	gwtbootstrap3/src/main/java/com/svenjacobs/gwtbootstrap3/client/ui/TextBox.java
	gwtbootstrap3/src/main/java/com/svenjacobs/gwtbootstrap3/client/ui/base/AbstractInputGroupAddon.java
	gwtbootstrap3/src/main/java/com/svenjacobs/gwtbootstrap3/datetimepicker/client/ui/base/DateTimeBoxBase.java
Inherit PasswordTextBox from our TextBox