I've used this in conjunction with the Schema.org module and my own Entity Fields Builder module now to build a Drupal project, so I think it is ready for a dev release.
I've used this module successfully in building out content types for one of my own project, and I think it is stable enough for full project status on Drupal.org. I'm therefore making a dev project release.
#1710578: Module automatically appending an equal sign (=) at end of query string
Issue #949604 by zilverdistel: Added i18n support for the static link text field option.
Issue #1909314 by Simon Georges: Removing link.install from the link.info files[] array.
Issue #1674284 by sun, jcfiala: Cleaning up the code to Drupal standards, this time with the tests.
Issue #1674284 by sun, jcfiala: Cleaning up the code to Drupal standards.
By hass:Fixing a string in the target argument handler to be t-compatible.
By hackwater: Fixed minor typo which spelled automatically wrong.
Issue #1458502 by eugene.brit:Fixing Undefined index: target in _link_sanitize()
Issue #1010850 by benjifisher: Update MigrateFieldHandler to work with migrate-7.x-2.4 and later.
Issue #1889918 by jcfiala,Boobaa:Changed the bad url error message to include the field's label.
Issue #1179944 by jcfiala,mr.york: Added variable_get calls so that the list of TLD that pass validation can be set by admins.
Issue #1766150 by jcfiala: Blank urls will no longer be treated the same as links to
Issue #1686024 by Alan D.: Added implementation of hook_field_diff_view().
Issue #1715246 by Haza, jcfiala: Fixed strict warning when loading entity for token use, also fixed problem with the title attribute not being handeld properly.