JQM component event basics + "tap".

Added support for "tap" JQM event
(http://api.jquerymobile.com/category/events/) wherever there was
support for click implemented in JQM4GWT. "taphold" is implemented but
not added to any widget.

Other event types need to be added as well (should be easy now); maybe
it would be a good idea to add all those at JQMWidget level - as JQM
doesn't specify each event for what widget is meant...
Added a 'tap' button to the event examples.
Merged some root repo commits that had merge conflicts - specially on
list item.

List item was able to contain other widgets, but event handlers would
not work on them. Added the components in logical GWT hierarchy as well.
Now events should work on child components.

Refactored the newly added JQM events to allow some native access to the
jQuery event object, only add one listener in case of multiple handlers
+ not stop propagation and default value always (for tap/vclick + page
switch problem) to allow bubbling & other listeners if someone else adds
them natively.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	examples/src/main/java/com/sksamuel/jqm4gwt/examples/lists/ListViewDemoPage.java
	examples/src/main/java/com/sksamuel/jqm4gwt/examples/uibinder/TestView1.java
	examples/src/main/resources/com/sksamuel/jqm4gwt/examples/uibinder/TestView1.ui.xml
	library/src/main/java/com/sksamuel/jqm4gwt/JQMCommon.java
	library/src/main/java/com/sksamuel/jqm4gwt/list/JQMList.java
	library/src/main/java/com/sksamuel/jqm4gwt/list/JQMListItem.java
	library/src/main/java/com/sksamuel/jqm4gwt/toolbar/JQMToolbar.java
Merging again.
Merge again.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	library/src/main/java/com/sksamuel/jqm4gwt/list/JQMListItem.java
Event argument was missing. Also changed names to make them more
suggestive and less missleading.
Merge pull request #64 from costescuandrei/master

Added 'tap' event and basics for other JQM events to be added. Handler refactor in JQMPage for child of JQMToolbar event usage.