backing out changeset 11933, to put back WhiteSpaceTokenizer instead of StandardTokenizerFactory

as this broke searching by DOI - SYSMO-1590, SYSMO-1649
publication should have :auto_index=>false for indexing, since a background job is triggered
update tags
Merge Mercurial changes into seek-0.21

Conflicts:
	.hgtags
Merge branch 'seek-0.21' into vln-merge

Conflicts:
	app/models/publication.rb