Corrected typeo

Caused confusion because it said the option was called "editable_column" when it is actually "editable_columns".
Merge pull request #635 from shobute/patch-1

Corrected typo
Scroller: thead width now set in IE. Fixes #637
Pager: specifically target rows to prevent issues with ember scripts. Fixes #638
Filter: selectSource option now correctly handles parsed values that return a zero
Docs: Add more details about using pager ajax options
Update example-widget-header-titles.html

A plugin was used in the example that is not part of tablesorter so added it to the notes
Merge pull request #642 from lordmat0/patch-1

Update example-widget-header-titles.html
Print: popup now automatically closes with print dialog. Fixes #643
Print: change jQuery requirement to v1.2+
Theme: bootstrap white unsorted icon now shows with icon-white class. See #648
Filter: filter formatter for jQuery UI datepicker now remembers the correct date
Filter: corrected filter events & prevent table manipulation if filters are empty. Fixes #645

filter events no longer occur before the filterInit event
Pager: correctly detach and append jQuery rows. Fixes #650
Core: clearTableBody function now detachs rows instead of the tbody
Scroller: Set column widths are now maintained. Fixes #634 & #380
Scroller: behaves properly with overflow scroll & column alignment. Fixes #340 & #333
Scroller: change default scroll bar width to 18. Fixes #363
Theme: remove auto height setting from filter elements
version bump