Consistency of usage of the word LaTeX in the documentation

The word LaTeX was used as just the word and on other places as \f$\mbox{\LaTeX}\f$
This has been made more consistent by means of the definition of the Alia \LaTeX (similar for \TeX)
Some names of executables etc. were not set in a 'code' font.
Fix segfault on invalid bounding FIG when patching dot
Bug 728530 - Crash on \addindex \term
Bug 692985 - Notes in xml output are not correctly separated
Merge branch 'master' of github.com:doxygen/doxygen
Merge pull request #152 from gilelad/master

Fix segfault on invalid bounding FIG when patching dot
Merge pull request #151 from albert-github/feature/bug_docu_latex2

Consistency of usage of the word LaTeX in the documentation
Merge branch 'master' of github.com:doxygen/doxygen