dynamic attrs integration done, need more test coverage
quickfix for table attrs_configs not exists error
Merge branch 'master' of github.com:mindpin/eshare into menxu/dynamic_attrs

Conflicts:
	Gemfile
	spec/features/admin/can_import_excel_file_to_create_users_spec.rb
fixing test
made test pass
using new dynamic_attrs api
pointing dynamic_attrs back to master branch
fixed Gemfile
Merge branch 'master' of github.com:mindpin/eshare
Merge branch 'menxu/dynamic_attrs'
remove unused files