renamed gitx-l to laullon-gitx (with canonical name as tag)
HOLD for next release: Excalibur cask

Adding a cask for Excalibur; HOLD for next release since this required an
exception for Sourceforge URL's.
Use `stage_only` in atom-shell
Use `stage_only` in node-webkit
fix old-style header line in test suite
require new-style header lines

and enforce that the cask name (per the header) must match
the filename
DSL: remove support for `nested_container`

Obsoleted by new form `container :nested`.

This PR only removes DSL support; the job is incomplete.
Internally, `container :nested` is still implemented as a
pseudo-artifact named `nested_container`.  The intention
is to factor nested containers out of artifacts.
avoid gitx in partial-match search tests

Some gitx Casks are being renamed.  Refs: #7436
Update flashlight to v0.71-alpha

Minor changes to support some major new plugin features.
Bug fixes and perfomance improvements, as always.
Merge pull request #7462 from jsfaint/master

Update flashlight to v0.71-alpha
Upgrade shadowsocksx to 2.4.1
Update AutoDMG to v1.5.2

AutoDMG v1.5.2 released 2014-11-13.
Merge pull request #7466 from sebnash/autodmg

Update AutoDMG to v1.5.2
Merge pull request #7465 from Ihavee/shadowsocksx

Upgrade shadowsocksx to 2.4.1
Upgrade PyCharm to 4.0
Upgrade PyCharm Community Edition to 4.0
Upgrade Futuniuniu.app to v2.16.354, and linking the app with official Chinese name
Added Application-Support folder to zap method for Deezer
Updated CoqIDE to 8.4pl5; Changed protocol to https
Merge pull request #7472 from fharbe/coqide

Updated CoqIDE to 8.4pl5; Changed protocol to https