upgrade to DataTables 1.10.4

need the bugfix DataTables/DataTables#391
Bootstrap 3 for DataTables
the css of the processing indicator seems to be okay with Bootstrap 3 now
Fix DOM structure for selectize inputs
Wrap select inputs in div
Update tests for new select input structure
update the version info of DataTables
Merge pull request #646 from yihui/feature/DT-1.10.3

upgrade to DataTables 1.10.4 and use Bootstrap 3
Fix appearance of DataTables examples
Limit width of inputs
Add slider2Input
Add customized ionslider skin for Shiny
Add animation to ionsliders
Add updateSlider2Input
Add QT-webkit touch detection workaround

This is from commit 813939b of ion.rangeSlider
Add script for updating ion.rangeSlider
Add format options to sliders
Add deprecation message for format argument
Simplify label code for slider2Input
Set HTML data values to "true" and "false"