Merge pull request #7 from adferguson/master

add quickcheck to dependency list in README
test_cleanup: use int32 instead of uint32

If an int32 is interpreted as unsigned, then the code should have no
problem accepting negative numbers. They're bits, after all.

This isn't the case for types such as int8 or int16, which are in fact
int32s. A negative int32 is defintely not an int8.
test_cleanup: use proper False constant in _oasis

false is not the same as False. This may have been the cause for #7.
Merge pull request #8 from frenetic-lang/test_cleanup

_oasis is sort of bad.
Fix infinite loop in group pretty printing (not gonna bother getting this reviewed, as Arjun is sitting next to me at Stumptown and gives it the thumbs up)
VInts auto-convert safely

If any high-bits are set, we throw an exception.

Reviewed by Nate.
forgot pa_ounit package in README.md
highlevelswitch0x04 hardcoded ports to be int32, which didn't jive w/ parser
vlan table fix
rm untested code from running path
Bug fixes to abstraction layer
reactive vlan_pop fix
-1 vlan now matches 'any vlan' in 0x04 backend
Merge pull request #10 from frenetic-lang/al-bugfix

Bug fixes to abstraction layer
fix vlan hardcoding VInt16
Bug fixes to abstraction layer
added helper pretty printers for flowtable/flow/etc
Add logic to push vlan frames as needed when setting vlan
fold_left -> fold_right in from_seq
merge