Skip LATEX_USABLE guard for communication.pdf as the check is incorporated into dune_add_latex_document.

[[Imported from SVN: r7405]]

Skip LATEX_USABLE guard for buildsystem.pdf as the check is incorporated into dune_add_latex_document.

[[Imported from SVN: r7404]]

The tarballs already contain the generated pdf files. No CMake 
will detect whether the pdf are contained in the source tree.
If that is the case they will not be generated and installed directly.

[[Imported from SVN: r7380]]

[[Imported from SVN: r7376]]

[[Imported from SVN: r7126]]

[[Imported from SVN: r7124]]

[[Imported from SVN: r7122]]

[[Imported from SVN: r7116]]

The index sets themselves are already there.

Step 1: copying files from dune-istl to dune-common

[[Imported from SVN: r7110]]

[[Imported from SVN: r7079]]

exclude debugallocator.cc from doxygen documentation

[[Imported from SVN: r7019]]

add documentation for allocators

[[Imported from SVN: r7018]]

[[Imported from SVN: r6988]]

[[Imported from SVN: r6872]]

[[Imported from SVN: r6832]]

[[Imported from SVN: r6794]]

[[Imported from SVN: r6776]]

[[Imported from SVN: r6772]]

[[Imported from SVN: r6770]]

In particular, the search gets faster _because of_ the use of ls,
not _despite_ of it.

[[Imported from SVN: r6769]]

Add DUNE_DEPRECATED_MSG() to the predefined macros for Doxygen, otherwise it gets confused and messes up with \copydoc.

[[Imported from SVN: r6768]]

Add DUNE_DEPRECATED_MSG() to the predefined macros for Doxygen, otherwise it gets confused and messes up with \copydoc. 

[[Imported from SVN: r6767]]

[[Imported from SVN: r6762]]

[[Imported from SVN: r6686]]

[[Imported from SVN: r6656]]

 documentation besides doxygen can be installed.
- Make sure we install under ${CMAKE_INSTALL_PREFIX}. Therefore
  we must provide the absolute path to our custom install script.
- Include DuneDoc at toplevel and let create the doc target. Thus
  we can use its macros all over the place.

[[Imported from SVN: r6626]]

Removed UseDoxygen.cmake as it does not seem to fit our needs.

BTW: Welcome to the CMake hell! It exists, I have experienced it!

[[Imported from SVN: r6624]]

[[Imported from SVN: r6623]]

Doyfile.in needs to be generated.

[[Imported from SVN: r6622]]

[[Imported from SVN: r6620]]

Right now only the buildsystem documentation is built.

[[Imported from SVN: r6619]]

[[Imported from SVN: r6616]]

[[Imported from SVN: r6605]]

[[Imported from SVN: r6604]]

ISSUES:
- Only works for out of source builds
- We will probably run into issues on non-unix platforms
- Is the licence compatible with ours?

[[Imported from SVN: r6603]]

The documentation is still not built and therefore not installed

[[Imported from SVN: r6602]]

[[Imported from SVN: r6585]]

exec, module/only, resume/skipfirst and configure caching.
Clarified paragraph about Extra-Suggests.

[[Imported from SVN: r6584]]

[[Imported from SVN: r6583]]

[[Imported from SVN: r6582]]