• enhanced the /capabilities endpoint with bounds, center,tiles and capabilities values.
• added /capabilities/:map_name endpoint which returns TileJSON about a map.
• added configuration values for map -> center and map -> bounds. These values will be included in the /capabilities and /capabilities/:map_name responses.
• fixed bug where the HTTP port was not being read correctly from the config file.
• added http(s) prefix to tile URLs returned the /capabilities endpoints