[FIX] Accept valid Ripple names without leading ~

Check if the ripple name is valid if the rp-dest-ripple-name-no-tilde
attribute has been specified and the value does not begin with a ~
[FIX] Accept valid Ripple names without leading ~

Add new rp-dest-ripple-name-no-tilde attribute to the Ripple name fields
in Add Contact and Edit Contact forms
Merge pull request #1493 from bss-/contacts-ripple-name-no-tilde

Contacts ripple name no tilde