first steps for iban and bic for #747
step2 for iban and bic
generate iban and bic and bank details in view
rake task
regex validation for iban and bic
merge
tests for iban bic fixed
stuff
Merge branch 'develop' into feature-iban

Conflicts:
	app/models/user.rb
	config/api.yml.example
fix #747 - finalize iban/bic handling, mostly javascript stuff
Merge branch 'feature-iban' into develop