Add new syntax match group "clojureStringEscape"

Allow for highlighting of escape characters contained within
clojureString.

Also, update clojureCharacter to support all unicode values.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	syntax/clojure.vim
Create comprehensive regular expression syntax groups
Correction to clojureRegexpBoundary
Merge branch 'master' into noprompt-regexp

* master:
  Only allow leading 0 in numbers for octal literals
  Fix clojureNumber pattern
  Move clojureRegexp back down past clojureDispatch
  Use \%( in match pattern
  Convert clojureNumber to \v pattern
  clojureNumber takes precedence over clojureSymbol

Conflicts:
	syntax/clojure.vim
Add Joel Holdbrooks to header as major contributor
Add synmaxcol=default to modeline
Allow multiple match flags with optional toggle
Link to SpecialChar instead of Special
Correction to pattern flags
Correct matching of control characters
Drop invalid clojureRegexpChar syntax group
Add clojureRegexpQuantifier to clojureRegexpGroup and link to Special
Drop @clojureRegexpChars containment from clojureRegexpCharClass
Move vim_clojure_static.clj into clj/ lein project
Get synID names from vim as EDN
defsyntaxtest
Turn on filetype plugin in vim test script

This is needed to load iskeywords
Add number-literals-test, with newfound bugfixes
Rename clojureRegexpSpecialChar to match string group

clojureString, clojureStringEscape
clojureRegexp, clojureRegexpEscape