Fix ldap member_of vs memberof bug
Merge pull request #346 from avalonmediasystem/bugfix/ldap_member_of_vs_memberof

Fix ldap member_of vs memberof bug
Don't try to set a null poster image
Merge pull request #347 from avalonmediasystem/bugfix/vov-2848

Don't try to set a null poster image when switching streams
NU Test customizations:

Add the ability to generate tab-delimited transcoding reports on master files
Shrink NU deploy branch to the bare essentials
Change nuldap so netID => username, email => email
Reindex everything on deploy
Only reindex if the AVALON_REINDEX environment variable is set
Generate handles
Add handle dependencies
Put the NOID template in the config file
Symlink lti.yml on deploy
Deploy the right environment file
Save NOID minter state between generations
Create Admin::Collection.after_save hook to create the dropbox permissions file.
Add all administrators to collection permissions list
Add a courses controller to inspect/delete/purge initialized LTI courses
Remove quotes from $@ command execution in locking_runner script
Remove user 'avalon' from default collection perms list
Autocomplete email addresses directly from LDAP
Add group_ldap.rb to shared children
Refactor collection permissions callbacks
Delete the dropbox on disk before destroying the object
Add group_ldap initializer to deploy
Replace mysql with postgres