[TASK] Add Source Code Link and fix 'jump to' icons
Source code is related and a fast way to code if docu is broken or not up2date
Merge pull request #21 from xf-/sourceCodeLink

[TASK] Add Source Code Link and fix 'jump to' icons
[BUGFIX] Remove DTD validation on XSD
Merge pull request #22 from xf-/removeValidation

[BUGFIX] Remove DTD validation on XSD
[TASK] Improve blacklistet fluid rendering
Merge pull request #23 from xf-/fluidXsdRendering

[TASK] Improve blacklistet fluid rendering
[TASK] Make sure git mode fetches all tags before starting
[TASK] Reset repository hard before starting build
[TASK] Silently clean each major branch before pulling tag
[TASK] Add extension version to composer
Merge pull request #26 from xf-/composerVersion

[TASK] Add extension version to composor
[TASK] Clean up command controller behavior

This patch:

* Refactors writing of schema files through a method which decides strategy based on `$gitMode`
* Makes it possible to generate schemas using the command in any combination of extension key, spool file and git mode, for example letting users specify by an extension key and spool file and have both processed according to `$gitMode` in one go (thus generating schema for the extension even if not spooled)

Close: #27
[TASK] Remove source code link for blacklisted extensions
Merge pull request #29 from NamelessCoder/commands

[TASK] Clean up command controller behavior
[BUGFIX] Second and deeper level of JS menu filter fails

Fixed by ensuring a .show() is executed on detected elements.

Close: #16
[TASK] Remove unused argument
[TER] 3.0.1
[DOC] Remove code metrics graphs from README.md
[DOC] Remove code metrics graphs images (1)
[DOC] Remove code metrics graphs images (2)