Create GDAL Framework 1.11 Cask
Required as dependency to install QGIS
See #5074
The complete framework package is installed because most applications that use GDAL will also need Proj, UnixImage and Numpy.
DSL add uninstall `:delete` and `:trash`

- `:delete` is intended to replace `:files`
- `:trash` is intended to move files to the OS X Trash
- `:trash` is only a stub — currently all three function identically

References: #4688
move read_script_argument to Cask::Artifact::Base
generalize read_script_arguments

so that it can be called from multiple stanzas
harmonize error messages
read_script_arguments accepts defaults/overrides

as parameters.  Accept overridden keys when submitted by the
caller, but warn that they are ignored.
Add XnConvert latest
Merge pull request #5164 from ndr-qef/ghc

Update GHC to 7.8.2-r7
Upgrade Bathyscaphe.app to v2.4.2
Merge pull request #5165 from naberon/bathyscaphe

Upgrade Bathyscaphe.app to v2.4.2
Merge pull request #5163 from szhu/master

Add XnConvert latest
Add svnX.app 0.9.13
Merge pull request #5166 from grevolution/svnx

Add svnX.app 0.9.13
Upgrade ownCloud to 1.6.1.359
Merge pull request #5167 from joelpurra/owncloud-1.6.1.359

Upgrade ownCloud to 1.6.1.359
Update Vienna 3.0.0 rc1
changed url-format
Merge pull request #5169 from stonerl/master

ownCloud changed url-format
Upgrade Transmission to v2.84
Merge pull request #5171 from Ihavee/Ihavee

Upgrade Transmission to v2.84