Adding FQSEN in addition to Fully Qualified Structural Element Name (FQSEN)

This is needed to fix links to `term:FQSEN`.
Fixing typo - @deprecated instead of @ignore
Merge pull request #938 from JDGrimes/develop

Develop
Update var.rst

Added documentation for the @var tag.
Update var.rst

Applied suggestions.
Update var.rst

All document sections are complete for @var. Please review.
Add puppi and apache submodule
Add missing apache include
Add tests for Compiler/Linker/Linker
Add test for uncovered method in Compiler/Pass/Debug
Add test for not covered method in Compiler/Linker/Linker
Start with ElementsIndexBuilderTest
Removed installer
Added presentation mode to routing filter
Merge pull request #945 from ceeram/develop-testfest-compiler

Develop testfest compiler
Merge pull request #940 from gammamatrix/develop

Update var.rst
Merge branch 'develop' of github.com:phpDocumentor/phpDocumentor2 into release-2.0
Dear repository,

You missed a test for getInheritedConstants
Which caused me some annoyance
So i did my very best
To create you a pull request
with love from the testfest attendants
Merge pull request #947 from ceeram/develop-testfest-descriptor

Dear repository,
Methods, properties and constants were not inheriting correctly