fix verbose suggestions output
(thanks to Tobias Malkmus)

[[Imported from SVN: r6861]]

add an option to print the sorted list of modules, including the info
if it is a dependency or a suggestion

[[Imported from SVN: r6860]]

remove debug output

[[Imported from SVN: r6854]]

add support to run the dependencies in revers order
(necessarry for "make distclean")

[[Imported from SVN: r6849]]

report about suggestions

[[Imported from SVN: r6846]]

set full path for dependencies.m4

[[Imported from SVN: r6845]]

make m4create work with versioned suggestions

[[Imported from SVN: r6840]]

bug fix in m4create:
- the current module is stored in $mainmod, not $module

[[Imported from SVN: r6838]]

remove obsolete assignment

[[Imported from SVN: r6837]]

remove unused code

[[Imported from SVN: r6835]]

duneproject. See FS#1029 for more details.

[[Imported from SVN: r6821]]

- Remove unnecessary path to control file (It was needed for building
  installed modules which we do not do any more
- Test for ../../pkgconfig/$modname.pc to decide whether a module is 
  installed or not. Fixes flyspray 1100.

[[Imported from SVN: r6738]]

[[Imported from SVN: r6737]]

  do exist, as they are actually one file for installed modules.)
- Only build modules that are not installed
- Store relative path of CONTROL file and use it during running
  commands (on second thought I am not sure whether this is really
  needed).

Fixes flyspray 1112.
Please check whether flyspray 1100 is also resolved.

After review this should definitely be merged into the release branch.

[[Imported from SVN: r6736]]

[[Imported from SVN: r6536]]

[[Imported from SVN: r6535]]

the user (see FS#958). Kudos go to Andreas Lauser.

Note: I looked through the patch and asserted that the resume feature is still
working (I always overwrite the resume file anyway). In case dunecontrol stops
working for someone, please simply revert this patch (if possible) and add a
comment to FS#958).

[[Imported from SVN: r6520]]

[[Imported from SVN: r6500]]

bug fix in dunecontrol export

[[Imported from SVN: r6459]]

* while traversing the tree, the modules now have a dedicated state:
   MAIN=one of the selected modules
   DEPS=added due to dependencies
   SUGS=added due to suggestions
* use the state to determin the list of dependencies and suggestions
* fix FS#893

[[Imported from SVN: r6458]]

* default is "no"

[[Imported from SVN: r6454]]

- move the iteration on all modules to the main program
- fix order of command when building several modules with several commands

[[Imported from SVN: r6452]]

- correctly merge installed modules into the DUNE_CONTROL_PATH
- Fix FS#901

[[Imported from SVN: r6449]]

[[Imported from SVN: r6447]]

[[Imported from SVN: r6427]]

[[Imported from SVN: r6426]]

[[Imported from SVN: r6399]]

[[Imported from SVN: r6398]]

Hopefully the last fix concerning flyspray 895.

Maybe the release managers could merge this to the release as they 
opted for simply reverting my changes instead of just reopening the bug. The latter would have caused less work.

[[Imported from SVN: r6397]]

[[Imported from SVN: r6396]]

Fixes flyspray #895

The problems was that INSTMODULE was overwritten in find_modules_in_path.
For MODULES (the non-installed ones) this was not a problems since new modules
were appended already in find_module.


[[Imported from SVN: r6393]]

[[Imported from SVN: r6304]]

Dan's reconfigure problem.

[[Imported from SVN: r6253]]

[[Imported from SVN: r6228]]

This allows parallel builds of different source trees...

[[Imported from SVN: r6111]]

[[Imported from SVN: r6110]]

[[Imported from SVN: r6101]]

[[Imported from SVN: r6093]]

[[Imported from SVN: r6064]]

[[Imported from SVN: r6063]]