bumped version number to 1.8.0
adding mention of GCE support in readme
Merge pull request #553 from shatterednirvana/release-1.8.0

Release 1.8.0
waiting for POST request to XMPP route to finish before returning
Merge pull request #555 from shatterednirvana/xmpp-stability-fix

waiting for POST request to XMPP route to finish before returning
fixed broken unit tests
Merge pull request #556 from shatterednirvana/xmpp-stability-fix

fixed broken unit tests
adding more consistency to writes
Merge pull request #557 from jovanchohan/write_consistency

adding more consistency to writes
fixing unit test interface
fixing unit test interface
fixing unit test interface
Merge pull request #558 from jovanchohan/write_consistency

fixing unit test interface
updated xmpp to use httplib instead of urllib when posting
Merge pull request #559 from shatterednirvana/httplib-in-xmpp

updated xmpp to use httplib instead of urllib when posting
fixed how we post to app engine apps to work better with java app engine, and added logging so we know when POSTs fail
Merge pull request #560 from shatterednirvana/httplib-in-xmpp

Fixed how we post to app engine apps to work better with java app engine