Update base.html

Modified menubar app title
Update base.html
Update index.html
Bootstrap download URL changed

Bootstrap changed their URLs when they added their 3.0rc1
entity no longer ignores 'not ok' log messages
add_file thumbnailer checks for bad files, cleans up

After attempting to make thumbnail, checks to see if file exists.
If it does, check if it's valid (not zero-length).
It invalid, mark file.thumb = 0 and delete the bad thumbnail file.
Log activity for debugging.
NewFilesForm needs same options in POST as in GET. Derp.
mv date format strings into settings
format datetimes properly
mv DDRLocalEntity to models.__init__; METS_FIELDS > ENTITY_FIELDS

For the sake of easier editing by the team, separate entity
object field definitions from the code.
mv Collection to models.__init__; EAD_FIELDS > COLLECTION_FIELDS

For the sake of easier editing by the team, separate collection
object field definitions from the code.
mv DDRFile to models.__init__

This is mainly for consistency with similar commits for
collection and entity objects.
error-checking on collection XML parsing funcs

The collection edit from isn't crashing any more.
EAD probably isn't correnct any more either but we're sort of
punting on that for now.
move webui messages into separate file for easier editing
Merge branch 'mv-fields-text'

Conflicts:
	ddrlocal/ddrlocal/models/entity.py