Version 1.2.1 release

This version is focus on bug fix, here are the changes:

• [Requirement] more support for page import even file cannot not be opened by SSE editor
• [Bug] "By click position" option can work in IE8
• [Bug] Expend TD colspan does not work in IE8
• [Bug] Two scroll bar display in IE8
• [Bug] Visual part scroll to wrong place when select element near sash
• [Bug] Taglib element is not highlight when select it in source editor
• [Bug] Cursor of source editor move to wrong location when edit source code

Please let me know if you have any suggestion. Thanks!