Metacat

Made some CSS changes to the "Go" button in the docs because it was off by a few pixels in three different browsers. Also changed the admin config landing page links to look like buttons

add documentation entries for fields that appear on the main metacat admin page.

Add code to handle the looking up names.

Add two peroperties for the templates of looking up user name.

Add a template to handle the success of looking up the username.

Add a tempalte for users to look up the forgotten username.

Imported FontAwesome after Bootstrap for the FontAwesome icons. Also added a white version of the metacat logo.

redirect to the configured metacatui context (ui.context in metacat.properties file). this in conjunction with choosing "metacatui" as the default skin in the metacat admin interface will redirect requests to the metacat context (e.g., /knb) to the ui context (e.g., /metacatui). https://projects.ecoinformatics.org/ecoinfo/issues/6062

prep for 2.2.0 release. include configuration value for metacatui deployment context.

Matched the admin config pages to the default metacatUI theme. Changed the background image of the docs and config pages to a big cat for some metacat branding.