[ticket/12732] Add Skype custom profile field

PHPBB3-12732
[ticket/12732] Use user info instead of chat as default Skype action

PHPBB3-12732
[ticket/12732] Improve ALPHA_PUNCTUATION description

PHPBB3-12732
[ticket/12732] Missing comma after validation definition

PHPBB3-12732
[ticket/12732] Add unit tests for ALPHA_PUNCTUATION

PHPBB3-12732
[ticket/12729] Add Facebook custom profile field

PHPBB3-12729
[ticket/12729] Cleanup schema_data.sql for Facebook field

PHPBB3-12729
[ticket/12729] Unnecessary whitespace in profilefield_facebook.php

PHPBB3-12729
[ticket/12729] Update schema.json

PHPBB3-12729
[ticket/12729] Fix block header spacing for profilefield_facebook.php

PHPBB3-12729
[ticket/12729] Convert spaces to tabs

PHPBB3-12729
[ticket/12729] Move ALPHA_DOTS to above ALPHA_SPACERS

Have easier matches first for better performance

PHPBB3-12729
[ticket/12729] Add unit test for ALPHA_DOTS validation

PHPBB3-12729
[ticket/12729] Set field_active as 1 for Facebook profile field

PHPBB3-12729
[ticket/12732] Set field_active to 1 for Skype's field

PHPBB3-12732
[ticket/12733] Add Twitter custom profile field

PHPBB3-12733
[ticket/12733] Update schema.json

PHPBB3-12733
[ticket/12733] Fix spacing for block header in profilefield_twitter.php

PHPBB3-12733
[ticket/12733] Convert spaces to tabs

PHPBB3-12733
[ticket/12733] Set field_active to 1 for Twitter

PHPBB3-12733