[Sluggable] Use anchored regex query in ODM adapter

Using an anchored regex query will take advantage of MongoDB indexes. See: http://www.mongodb.org/display/DOCS/Advanced+Queries#AdvancedQueries-RegularExpressions

After implementing this fix on an older branch, I realized it builds upon: 96550fd512af1decc7042cfa8d77fd0f41f2111b. This commits adds the fix to replaceRelative() and also uses preg_quote() for escaping the slug in the MongoRegex pattern.
Merge pull request #240 from Exercise/sluggable-query

[Sluggable] Use anchored regex query in ODM adapter
Add fixtures for sortable test
get column definition from metadata
correct code formatting
fix error
Made TranslationProxy properties protected
Merge pull request #243 from kbond/patch-1

Made TranslationProxy properties protected
fixed Event\Adapter\ORM in Timestampable
Merge pull request #241 from tolean/feature/treeClosure_with_custom_columns

get column definition from metadata
Timestampable now works with change tracking policy notify
removed unnecessary comments
Merge pull request #245 from prolic/master

Timestampable now works with change tracking policy notify
make 'transliterate' do only that rather than transliterate && urlize, make the urlization happen after transliteration all the time to allow using other transliterator that are not urlizers
Merge pull request #251 from khepin/transliteration

make 'transliterate' do only that rather than transliterate && urlize, m...
Added TravisCI configuration (and build status in the README).
Merge pull request #252 from jakzal/TravisCI

Added TravisCI configuration (and build status in the README)
Fix transliteration.
Add `handlesUrlization` to handler interface for handlers that handle Urlization so that we don't re-urlize and remove special characters needed by that specific handler.
fix indentation & use statements for coding standards compatibility
more indentation fixes, should be all ok now