Fix moveTabTo on Fx35+

Replace arguments.callee.name using tabmixplus/modules, the fix moveTabTo when undo (i.e. extensions.tabutils.restoreOriginalPosition).
Fix lastTab error in gBrowser.onTabSelect

Fix undoSubmenu be null on Fx35+

Fix 'let' changes in Fx35 (I forget its impact)
Fix undoSubmenu be null on Fx35+

Note: moveTabTo when undo (i.e. extensions.tabutils.restoreOriginalPosition) and several bugs is unrepaired.

p.s. Github are always says: "Unfortunately, we don't support that file type. Try zipping it.", so unzip it.

修复几个问题，适用于 Firefox 33

修复标签栏两侧的箭头按钮消失，Firefox 32+
修复地址栏回车失效，Firefox 33+
修复一个参数变化问题，Firefox 33+