Do not consider shell language settings when parsing svn info output

Ignore-this: 56cde4b97726dd41b04c3508af4f4cdb

darcs-hash:20090921104124-b22ec-80e1cf3e94740c404069c06b8c35d22a791ad0b5
Update OSX install instruction to install only data in /usr/local

darcs-hash:20090921153420-58252-c2fe04555c8908c4f11c85188f93ec604f2246c6