add support for creating a dependency graph based on easyconfig files

86 encoding scheme

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

correct naming of classes for Python packages nose, numpy and scipy

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>

add empty line before 'built with EasyBuild version X' line in easyconfi...

add empty line before 'built with EasyBuild version X' line in easyconfig, fix debugging msg for extending MODULEPATH (was broken if skip was being used)

Conflicts:

	easybuild/framework/application.py

Proper way to set the logdir

Categorize easyconfig parameters

Conflicts:
	easybuild/easyblocks/c/cp2k.py

Fix missing import for get_software_root in application.py

Conflicts:
	easybuild/build.py
	easybuild/tools/repository.py

move all imports on top in try-except-ImportError blocks, use try-except-NameError block around functions that use optional packages to deliver sensible error messages if the packages are not there

Change test-files as well

Conflicts:
	easybuild/framework/easyconfig.py