Ignore show/hide of the tab bar itself, to avoid infinity loop (#473)
Find pseudo drop target tab from the drop position for dragging on the top or bottom of the tab bar (#461)
Find pseudo drop target tab from the drop position for dragging on the bottom of the tab bar correctly (#461)
Use latest fxaddonlib-tabs-drag-utils
Move all tabs in the dragged tree to a newly opened window correctly on Firefox 19 and later (#472)
Load "PlacesUIUtils.jsm" correctly.

The path was changed on 2010-04-18 ( http://hg.mozilla.org/mozilla-central/rev/f60133d3febe , https://bugzilla.mozilla.org/show_bug.cgi?id=556739 ) but worked until recent versions. Why??
Suppress errors while dragging the tab bar itself
Add new secret option "extensions.treestyletab.autoAttach.fromCurrent" to control new tab position from the current tab (#452)
Define handleNewTabFromCurrent and handleNewTabCommand as methods of both TSTWindow and TSTBrowser (for future changes to open related tab from the current tab from TSTBrowser)
Open new tab from the current tab as a sibling correctly
Rename generic method to open new related tab with specified behavior

handleNewTabCommand =>
readyToOpenRelatedTabAs
Change prefix for name of method functions of TSTBase

utils_ =>
TSTBase_
Update original URL of the library bookmark-multiple-tabs
Add compatibility note for deprecated feature on Firefox 20
Add history
Fix js strict-mode error: avoid prohibits function statements not at the top level of a script or function.
Merge pull request #458 from saneyuki/strict

Fix js strict-mode error.
Add history topics for master/HEAD
Merge branch 'master' of github.com:piroor/treestyletab
Bump version to 0.14.2013040601

And bump maxVersion to 23.0a1