Correct NMEA GGA sentence parsing.
Correct cm93 chart bar color
Modify vector record ID data type (hash key) to unsigned int. (FS#1343)
Improve S57 ENC Update logic and messages (FS#1343)
Improve ENC feature attribute catalog formatting
Remove debug hook.
Merge pull request #105 from Ptizef/master

Add Altitude data request ( 300,500,700,850 hPa ) and some minor code improvements
Complete "welcome" string