STREAM-915: reordered construction of member vars in user class to fix warnings

Various updates to fix support with latest version of Xcode (5.1.1)
STREAM-915: fix for tr1/unordered_map header
Merge pull request #13 in RND/pion from STREAM-915-mike to develop

* commit '30a465f9fcb11d1596ae538249af74ace1f6e0a1':
  STREAM-915: fix for tr1/unordered_map header
  STREAM-915: reordered construction of member vars in user class to fix warnings
PION-1324: parse_cookie_header() is adding key-value pairs that it should
be ignoring
Updated is_cookie_attribute() to do case insensitive matching and added a
few unit tests.
Merge pull request #14 in RND/pion from PION-1324 to develop

# By Mignon Belongie
# Via Mignon Belongie
* commit '9ac7c546c39b79f859d55a84ced33a6de42538b9':
  PION-1324: parse_cookie_header() is adding key-value pairs that it should be ignoring Updated is_cookie_attribute() to do case insensitive matching and added a few unit tests.
Merge remote-tracking branch 'github/develop' into develop