Merge pull request #2611 from Dragooon/ticket/12729

[ticket/12729] Add Facebook custom profile field

* Dragooon/ticket/12729:
  [ticket/12729] Add functional test for Facebook field
  [ticket/12730] Values needn't be escaped for schema_data.sql
  [ticket/12729] Set field_active as 1 for Facebook profile field
  [ticket/12729] Add unit test for ALPHA_DOTS validation
  [ticket/12729] Move ALPHA_DOTS to above ALPHA_SPACERS
  [ticket/12729] Convert spaces to tabs
  [ticket/12729] Fix block header spacing for profilefield_facebook.php
  [ticket/12729] Update schema.json
  [ticket/12729] Unnecessary whitespace in profilefield_facebook.php
  [ticket/12729] Cleanup schema_data.sql for Facebook field
  [ticket/12729] Add Facebook custom profile field
Merge pull request #2612 from Dragooon/ticket/12733

[ticket/12733] Add Twitter custom profile field

* Dragooon/ticket/12733:
  [ticket/12733] Add functional test for twitter profile field
  [ticket/12733] Values needn't be escaped for schema_data.sql
  [ticket/12733] Set field_active to 1 for Twitter
  [ticket/12733] Convert spaces to tabs
  [ticket/12733] Fix spacing for block header in profilefield_twitter.php
  [ticket/12733] Update schema.json
  [ticket/12733] Add Twitter custom profile field

Conflicts:
	phpBB/install/schemas/schema.json
	phpBB/install/schemas/schema_data.sql
	phpBB/language/en/memberlist.php
	tests/functional/ucp_profile_test.php
Merge pull request #2621 from Dragooon/ticket/12732

[ticket/12732] Add Skype custom profile field

* Dragooon/ticket/12732:
  [ticket/12732] Update schema.json for Skype
  [ticket/12732] Add functional test for Skype profile field
  [ticket/12732] Values shouldn't be escaped for schema_data.sql
  [ticket/12732] Set field_active to 1 for Skype's field
  [ticket/12732] Add unit tests for ALPHA_PUNCTUATION
  [ticket/12732] Missing comma after validation definition
  [ticket/12732] Improve ALPHA_PUNCTUATION description
  [ticket/12732] Use user info instead of chat as default Skype action
  [ticket/12732] Add Skype custom profile field

Conflicts:
	phpBB/install/schemas/schema.json
	phpBB/install/schemas/schema_data.sql
	phpBB/language/en/memberlist.php
	tests/functional/ucp_profile_test.php
	tests/profilefields/type_string_test.php
Merge pull request #2628 from Dragooon/ticket/12731

[ticket/12731] Add YouTube custom profile field

* Dragooon/ticket/12731:
  [ticket/12731] Add functional test for youtube field
  [ticket/12731] Set field_active to 1 for YouTube field
  [ticket/12731] Add YouTube custom profile field

Conflicts:
	phpBB/install/schemas/schema.json
	phpBB/install/schemas/schema_data.sql
	phpBB/language/en/memberlist.php
	tests/functional/ucp_profile_test.php