make room for sidebar by setting a min-height to .main
copy bp_show_blog_signup_form() function from BuddyPress dist
copy bp_blogs_signup_blog() function from BuddyPress
wrap form elements in .form-group divs
copy bp_blogs_validate_blog_signup() function from BuddyPress
rename functions to avoid double declaration
remove JS for manipulating Create Site form DOM
fix wrong function call for validation procedure
append .has-error class to form groups with error
wrap blog title form elements in .form-group div
wrap privacy radio buttons in .form-group div
use .helper-text spans to append error messages
apply BS .text-danger to
Merge branch 'master' into createsite