Added a new function islandora_user_access() to simplify access callbacks.

This function will check the given object/datastream against the given
permissions and required content models using the given user. If no user is
given the user identified by the GET token will be used, if no token is present
the global user will be used.
Removed default ingest menu, ingest configuration can now take a object.

Was not in use and excepting any parameters for the ingest process via GET
was not very safe.

Also the ingest configuration can now take an NewFedoraObject rather than
building one from the configuration options. The old way is still supported
for now though.
Created $keys variable to be passed by reference to stop PHP warning being shown.
Cleaned up and moved grid/list display logic into islandora, since its now used in several modules.
object_properties.form.inc grammar fixes
add_datastream.form.inc grammar fixes
admin.form.inc grammar fixes
Merge pull request #298 from jordandukart/7.x

Use build_hook_list so we get correct hook_names when altering.
Merge pull request #299 from daitken/7.x

7.x grammar fixes
Merge pull request #292 from k-int/7.x

Created $keys variable
Standards Compliance
Added tests for islandora_user_access().

Caught a spelling mistake as part of the testing writing.
Merge pull request #287 from nigelgbanks/7.x-ingest-improvements

Removed default ingest menu, ingest configuration can now take a object.
Merge pull request #297 from nigelgbanks/7.x-objects-display

Cleaned up and moved grid/list display logic into islandora, since its n...
Merge pull request #291 from nigelgbanks/7.x-access-cleanup

Added a new function islandora_user_access() to simplify access callbacks
Handle downloading of clips in core (ONTIME-1262).