[ENH] Adding WikiWord tokenizer for elasticsearch to improve hits on CamelCase wiki page names

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@53336 b456876b-0849-0410-b77d-98878d47e9d5
[fp/53333] tracker fix

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@53339 b456876b-0849-0410-b77d-98878d47e9d5