DVCSObservable.xml and GPD.xml

Update of partons.properties too. Necessary after creation of new
folders in partons-example.

Some modifications to the conf files, as in PARTONS
partons/core/partons#21 partons/core/partons#22 partons/core/partons#28

47d8c09bd3bc1e673536d782b88daec6434cb674

Reorganize scenarios

Update .cproject by adding NumA dependence 

(instead of PARTONS_release)

- Add missing build/ folder.
- Add .gitignore.
- Fix cmake Find modules.

In ALL (trunk):
- Improvements on the previous cmake commits.

In Elementary_utils (trunk):
- Add the installation routines in CMakeLists.
- Add doxyfile.

In NumA++ (trunk):
- Add the installation routines in CMakeLists.
- Add FindElementaryUtils.cmake module and adapt CMakeLists.

In NumA++_Tests (trunk):
- Add FindElementaryUtils.cmake & FindNumA++.cmake modules and adapt CMakeLists.

In PARTONS (trunk):
- Add the installation routines in CMakeLists.
- Add FindElementaryUtils.cmake & FindNumA++.cmake modules and adapt CMakeLists.

In PARTONS_exe, PARTONS_release, PARTONS_Tests, PARTONS_Fits (trunk):
- Add FindElementaryUtils.cmake, FindNumA++.cmake & FindPARTONS.cmake modules and adapt CMakeLists.

In PARTONS_release (trunk) :
- Move examples from main.cpp to examples.cpp
- Remove beam_energy configuration for process module in examples.

In PARTONS_release (trunk) :
- Add some examples in main.cpp.

In PARTONS_release (trunk) :
- Correct typo in scenario files.
- Move some stuff to PARTONS_Tests

In PARTONS_release (trunk) :
- Update logger.cfg file
- Add examples folder for the release 

In NumA++:
- Added -pedantic flag in CMakeLists for warnings.
- Moved LinAlgUtils to parent folder.
- Added LSMR iterative algorithm for sparse least-squares problems, taken from https://github.com/tvercaut/LSQR-cpp (APACHE licence) and adapted to fit into NumA.

In NumA++_Test:
- Added -pedantic flag in CMakeLists for warnings.
- Added test for LSMR also taken from github.

In PARTONS:
- Added -pedantic flag in CMakeLists for warnings.
- Converted one observable scenario to the new cross configuration.
- Various modifications and additions to the Radon Inverse files. Now, the DoubleDistribution modules are not needed anymore. It was too complicated to deal with... But it's still possible to use them I guess.
- Renamed the Radon Inverse daughter class because the brute-force approach was dropped in favor of a fixed number of rows for the matrix.

In PARTONS_exe:
- Added -pedantic flag in CMakeLists for warnings.
- Updated partons.properties to the new scheme.
- Added a test for the Radon inversion.

In PARTONS_release:
- Added -pedantic flag in CMakeLists for warnings.
- Added a scenario for GPD.
- Close PARTONS properly when exception.

In PARTONS_release (trunk) :
- Update partons.properties and logger.cfg files
- Update few scenarios to test CrossConfiguration feature.
- Care !!! Other scenarios cannot be run.

In PARTONS_release (trunk) :
- Updated demo scenario.

In PARTONSrelease (trunk) :
- Corrected kinematics for observable.
- Updated demo scenario.
- Added plot files for observable.

In PARTONS_release (trunk) :
- Create some example for plot observable for the demo of Herve.

In PARTONS_release (trunk):
- Propagate change from PARTONS.
- Better handling end of program when exception occurs.

- Use command "executable" in the Ant scripts instead of the deprecated command "command".