Merge pull request #336 from JacksonRiver/7.x-4.x-webform_goals_bugfix_loader_file_url_when_installed_from_drush

Loader file creation without a server name
added some extra help text about internal widget embeds
Edited some help text.
Added conditional loading of jquery to the widget loader script
Merge pull request #337 from JacksonRiver/7.x-4.x-webform_goals_external_embed_shouldnt_require_jquery

Added conditional loading of jquery 1.10.2 from Google CDN if it's not already loaded on the page.
webform_goals loader js should replace itself if needed