added set_alias function
added modextraalias var to easyconfig/default.py
use modextraalias in easyblock.py
added unit test for test_alias
added modextramessageonload to easyconfigs
it works
option renamed to modextratclfooter
working modextraloadmsg
rename new easyconfig parameters and corresponding module_generator methods + minor clean up
add unit tests for msg_on_load and add_tcl_footer methods in module_generator
enhance toy build unit tests to test easyconfig parameters related to generated module file
rename modextraalias to modaliases
Merge pull request #6 from boegel/add-alias

rename modextraalias to modaliases
Merge pull request #5 from boegel/module-append-text

rename loadmsg/tclfooter easyconfig params, clean up supporting functionality, add unit tests
Merge branch 'develop' into module-append-text

Conflicts:
	test/framework/toy_build.py
Merge pull request #8 from boegel/module-append-text

fix conflict with develop
generate 'module use' statements rather than 'prepend-path MODULEPATH' for module path extensions
Merge branch 'develop' of https://github.com/hpcugent/easybuild-framework into add-alias
Merge branch 'add-alias' of https://github.com/pescobar/easybuild-framework into add-alias
Merge branch 'develop' into module-append-text

Conflicts:
	easybuild/tools/module_generator.py