[PCLOUD-232]: User is able to buy multiple dependent cloud name / additional cloud name with only one gift code and after completion of process success page is displaying only 'Continue' button.
[PCLOUD-231]: Able to sign up with ~, ., _, -  characters even after 'This cloud name is INVALID' message on the page.
Removed addFormValidation js function from signup.html as not required.
Fixed display of error messages on the very first display of the signup screen.
Merge branch 'integration' of https://github.com/RespectNetwork/csp-provisioning-application into integration