Promote server-time formatting to Utils
Add CUtils::Get/SetMessageTags()
Add CIRCNetwork::FindChans()
Merge pull request #501 from jpnurmi/message-tags

Add CUtils::Get/SetMessageTags()
Cleanup old tests (pre-gtest)
Fix message tags parser and add test of it
Merge pull request #500 from jpnurmi/find-chans

Add CIRCNetwork::FindChans()
Merge pull request #493 from jpnurmi/server-time

Promote server-time formatting to Utils
Add module hooks for raw client and server messages