Update and rename 001_create_cpm_users_capacities.rb to 001_create_cpm_user_capacities.rb

Debugged some database problems which were caused by a wrong reference.
Update 001_create_cpm_user_capacities.rb
Update 001_create_cpm_user_capacities.rb

updated.
Update en.yml

Added english translation.
Create de.yml

Added german translation.
Create new.css

new.css for assignments
Rename new.css to cpm_new.css
Update assignments.html.erb

added css link
Update _new.html.erb

edited view for css
Update cpm_new.css