Bug 735198 - plantUML requires epstopdf for building PDF files

Added conversion from eps to pdf, analogous to dia and msc
Bug 634763 - Fortran: external subroutine as dummy argument not recognized

Besides as as attribute the external can also be used as "type"
Previous commit (pull request 121) was reverted (pull request 122) due to warning message.
Support charset option for PlantUNL

Use as charset for PlantUML the same character set as de INPUT_ENCODING of the input source
Support plantuml !include statement

Support the plantuml !include statement by using the newly defined PLANTUML_INCLUDE_PATH
Add missing escape in doxysearch.cpp when result contained a double quote
Regression class<T extends V> resulted in class<V> as the page title
Merge pull request #223 from albert-github/feature/bug_735198

Bug 735198 - plantUML requires epstopdf for building PDF files
Merge pull request #224 from albert-github/feature/bug_634763_2

Bug 634763 - Fortran: external subroutine as dummy argument not recognized
Merge pull request #225 from albert-github/feature/plantuml_charset

Support charset option for PlantUML
Merge pull request #226 from albert-github/feature/plantuml_include

Support plantuml !include statement
Fix bug with C++11 static_assert

When processing a C++11 static_assert, we wish to skip the arguments. However, the `roundCount` is set to 1 despite the fact that the `SkipRound` routine will increment `roundCount` when it's entered. This causes the rest of the class to be skipped entirely.
Bug 736992 - Member functions omitted from tagfile
Merge branch 'tagfile'
Bug 735376 - tag file: Unknown compound attribute `singleton' found!
Merge pull request #231 from hansonw/master

Fix bug with C++11 static_assert
Bug 735767 - [PATCH] Fix potential copy and paste issue in vhdlparser/VhdlParser.cc
Bug 735924 - [Patch] Documentation: Wrong link for \\diafile
Bug 735925 - [Patch] DocBook: Possible name clash for generated image files
Bug 735926 - [PATCH] RTF output: \\diafile and \\mscfile do not work
Bug 735929 - [PATCH] Windows: Process exit code is ignored for processes launched using ShellExecuteEx()