Added set_flags method to dns.resolver.Resolver to allow overriding of default query flags
Do not generate empty NSEC3 bitmap windows
Have git ignore .pyc files
Add TLSA (RFC 6698) record type
Merge pull request #18 from pieterlexis/master

Have git ignore *.pyc files
Merge pull request #17 from pieterlexis/TLSA

Add TLSA (RFC 6698) record type
note TLSA added
Merge pull request #14 from sleach/master

Added set_flags method to dns.resolver.Resolver
Note new set_flags() method for dns.resolver.Resolver