Doc, refactor Map handling
Refactorings, particularly IO -> IOQueue
Make drawing interval/filename configurable
Make drawing server actually consider the config settings
Correct comments about second-based settings in .cfg files
Implement drawing server timeout config setting
Default config: drawing server pool = 10
Merge drawing server improvements (#38)
Move some DB handling from server to DB module
Fix forgetting to send final OK after handshake
Definition list -> table
Merge branch 'develop'