dns cache branch.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4016 ddefafc4-47db-0310-ae44-fa13212b10f2
adding

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4017 ddefafc4-47db-0310-ae44-fa13212b10f2
adding

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4018 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4019 ddefafc4-47db-0310-ae44-fa13212b10f2
DNS cache

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4023 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4024 ddefafc4-47db-0310-ae44-fa13212b10f2
Added keepalive files.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4026 ddefafc4-47db-0310-ae44-fa13212b10f2
KeepAlive implementation - first try

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4027 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4028 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4029 ddefafc4-47db-0310-ae44-fa13212b10f2
KeepAlive implementation - first try

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4030 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4031 ddefafc4-47db-0310-ae44-fa13212b10f2
modified some comments.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4032 ddefafc4-47db-0310-ae44-fa13212b10f2
minor cosmetic changes.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4033 ddefafc4-47db-0310-ae44-fa13212b10f2
Reset number of cname retries on query failure.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4039 ddefafc4-47db-0310-ae44-fa13212b10f2
commented out USE_LOCAL_DNS define.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4040 ddefafc4-47db-0310-ae44-fa13212b10f2
Cleanup and few bug fixes.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4041 ddefafc4-47db-0310-ae44-fa13212b10f2
Move dns stuff to its own directory.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4042 ddefafc4-47db-0310-ae44-fa13212b10f2
Made them compile with gcc.

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4044 ddefafc4-47db-0310-ae44-fa13212b10f2
git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-dnscache-0305@4045 ddefafc4-47db-0310-ae44-fa13212b10f2