Libraries shouldn't expose global state to users.

This patch makes the Zone interface functional over Loader.db and hides the definition of parserstate.
Remove extraneous whites' space\!
Rename Zone.load_zone to Zone.load and update CHANGES

while I'm breaking the interface of load_zone, I might as well simplify the name
Merge pull request #3 from dsheets/wto99

Antiglobalization of State!
Convert from Cstruct/Uri IPv4 address handling to Ipaddr handling
remove extra whitespace
Update _oasis with ipaddr dep
OASIS build system regen
CH-CH-CH-CHANGES
Merge pull request #4 from dsheets/ipaddr

Ipaddr
Fix RRSIG; fix ANY queries

Removed inexhaustive deconstructing bind, changed RRSIG from query type signing
to RR type signing, added rrsig record type to name the ambiguous RRSIG fields,
added query/RR match predicate.
whitespace
CHANGES
Merge pull request #5 from dsheets/rrsig

RRSIG
Merge master