added grid_location to rep commons
added grid_location to rep commons
added sif extended elements handling
Merge branch 'master' of github.com:canadaduane/openagent

Conflicts:
	spec/sif/representations/xml/student_personal_spec.rb
Merge branch 'master' of github.com:canadaduane/openagent

Conflicts:
	spec/sif/representations/xml/student_personal_spec.rb
Merge branch 'master' of github.com:canadaduane/openagent
Bump to version 0.7.8