fix Python support with ictce toolkit by tweaking specified libraries in numpy's site.cfg (refs #268)
clean up IMKL lib defs in toolkit.py, fix some bugs along the way

rename 'specification file' to 'easyconfig'

fix issues with enforcing lowercase module names (for toolkits)

fix issues with enforcing lowercase module names (for toolkits)

enforce this by making EasyBuild only look for lowercase modules in easyblocks

complete merge of branch to fix build/install of Python with nose,numpy,scipy with goalf toolkit (closes #265)

fix downloading of package sources, don't use --skip-build for numpy/scipy (doesn't work), only unset LDFLAGS if it is set, fix use of rmtree (refs #265)

fix downloading of package sources, don't use --skip-build for numpy/scipy (doesn't work), only unset LDFLAGS if it is set, fix use of rmtree (refs #265)

fix use of options.options to options.avail_spec_params because of renaming of command line option (closes #273)

fix example eb files with respect to building shared libs being disabled by default

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