Pass source document to nsIClipboardHelper.copyString() to support per-window private browsing mode
(and per-tab private browsing mode with https://addons.mozilla.org/addon/private-tab/)
Show unnamed tab groups in the "move tab to group" popup
Extract codes to create menu item for "move to group" popup
Generate menu item for unnamed tab groups correctly
Update history
Update tabsDragUtils.js
Fix wrong use of RestoringTabsData.get()
Use RestoringTabsData instead of tab.linkedBrowser.__SS__data
Merge pull request #41 from Infocatcher/patch-5

Support for per-window (and per-tab) private browsing mode
Fix coding style
Add copying links as HTML a elements (rich text HTML from CoLT)
Merge pull request #43 from ximellon/master

Add rich text HTML support
Add Yue Hu to the list of contributors
Define separate method to copy data to the clipboard
Detect rich text format without "rt" prefix
Fix conding style
Use Cc and Ci instead of Components.classes/interfaces
Report error while copying
Generate rich text data before generating simple string data
Copy HTML version as a rich text by default