Snapshot of python-dateutil-1.5
Tell git to ignore some typical stuff.
Don't attempt to parse iCal properties that start with 'X-'.
Change zoneinfo module to preload all known zoneinfo objects up front.

O(N) zoneinfo cache lookups were replaced by O(1) cache lookups,
thus significantly improving zoneinfo querying performance.
Bump version to 1.5.0.1
Speeding up dateutil: Python’s heapq module turns minutes into seconds.
See:
http://blog.brianbeck.com/post/22129050/speeding-up-dateutil-pythons-heapq-module-turns
By Brian Beck.
Honor tabs, not just spaces, when unfolding.
Silently ignore TZID attributes that begin with "X-".
New test fails on Python 2.7, but passes on 2.6

I reported this bug: https://bugs.launchpad.net/dateutil/+bug/737099
Quick hack to fix the broken test.
Updated zoneinfo to use tzdata2012c from ftp.iana.org

Hand-downloaded ftp.iana.org/tz/releases/tzdata2012c.tar.g
Then ran:
$ ./updatezinfo.py tzdata2012c.tar.gz 
Updating timezone information...
Done.
Merge remote-tracking branch 'origin/patches-for-1.5'

Conflicts:
	NEWS
	PKG-INFO
	dateutil/__init__.py
	python_dateutil.egg-info/PKG-INFO
	python_dateutil.egg-info/SOURCES.txt
	test.py