MPI_FOUND is already deprecated in CMake 2.8.6 - our minimal
required version.

To set variables like DUNE_COMMON_REVISION the macro dune_module_information
is called. To surpress output the macro gets an additional second
argument to QUIET the output. To set the PACKAGE_* variables correctly
dune_module_information is called a second time for the current module
after it was called all the other modules.

The test result was never used. The test slipped in as a copy from
the CMake code snippet from DuMuX.

Make sure to always quote paths that are relative to PREFIX_DIR, as that variable
may contain spaces.

Some Dune users like to aggregate all the Dune modules required for a project by
creating a Git repository with a Git submodule for every submodule. Unfortunately,
dunecontrol currently doesn't recognize the submodule repositories currently because
Git aggregates all repositories in the .git directory of the superproject (more
preciselyin in the subdirectory .git/modules/). In the submodule, .git is a regular
file that contains a referral to the actual repository directory.

This patch fixes the problem by

- Detecting Git directories by looking for both directories and regular files called
  .git in the module directory.

- Following the referral in submodules for the hook setup to make sure the hook gets
  installed in the correct location.

Fixes FS#1303.

Conflicts:
	.gitignore

quick-fix to make CMAKE builds respect the DUNE_BUILDDIR entry in opts
files

This is the same fix as for debugallocator. See flyspray #1287.
The problem was that move semantics were used if the compiler supports
variadic templates.

fix the last doxygen fix

some accidential debug statements broke the build for a clean checkout

In order to reuse the same source file, the fassign tests pass in
the values to be assigned as a preprocessor define. Unfortunately,
the preprocessor of clang 3.3 dies on this list if it contains spaces.

fix FS#1301

In order to reuse the same source file, the fassign tests pass in
the values to be assigned as a preprocessor define. Unfortunately,
the preprocessor of clang 3.3 dies on this list if it contains spaces.

make doxygen work in out-of-source builds:
extra magic to find the correct doxygen-tag file

fix global extern variable

also test assignment of fieldmatrix from densematrix

The behavior of DebugAllocator depends on whether the compiler supports
rvalue references, so make sure to run the corresponding test.

r7472.

[[Imported from SVN: r7473]]

[[Imported from SVN: r7472]]

This patch makes it possible to bypass installation of the whitespace hook by specifying

VCSETUP_FLAGS="DISABLEWHITESPACEHOOK=1"

in the user's options. If dunecontrol encounters that flag, it will not attempt to install
the hook in any module, uninstall the hook if it has already been installed and output a
warning telling the user that he'll have to take care of whitespace by himself.

[[Imported from SVN: r7471]]

This patch allows the user to specify a file with Git configuration options that
will be applied during the vcsetup phase, which might be used to set a custom identity
within the repository (e.g. an @dune-project.org email address) or to set up personal
aliases.

In order to enable this feature, put the line
VCSETUP_FLAGS="GIT_CONFIG_FILE=</path/to/your/config/file>"
into your options file. The configuration file itself is fed to the command
"git config" line-by-line, so you can normally set an option by simply having a
line like "config_key value" in the configuration file. Lines starting with # are
skipped and can be used for comments.

[[Imported from SVN: r7470]]

[[Imported from SVN: r7469]]

This patch hooks vcsetup into the standard "dunecontrol all" incantation
that most users are likely invoke after cloning a repository. By running
vcsetup that way, most Dune users will automatically have the whitespace hook
installed, which should greatly improve the usability of user-submitted patches.

[[Imported from SVN: r7468]]