added jquery 1.10.2

added jquery 1.10.2 and updated the examples to use it. So far this
breaks them because the splitter is not yet ready for jquery >= 1.9

Also removed some unused files
jQuery >= 1.9 support, fixes #1

used opera.version to detect opera and documentMode to detect IE,
therefore getting rid of calls to $.browser, which is no more.

Also changed the indentation to be more consistend and did some minor
fixes to make jshint happy.