omegalib: v6.4

NOTE due to an issue with branch versioning, version 6.3 is not an official release, and is just considered a work in progress towards 6.4. Changes implemented both in 6.3 and 6.4 are reported here.

BREAKING CHANGE: Texture::initialize has been substituted by a generic method with better control over texture and channel format. Old code specifying format using GL_ values will need to be converted. See commit 473e17eaebfcae4312d190643305c472542b0f73

Main Changes

• Added support for filtered log. omegalib by default generates much less verbose logs. Change with -L v option to enable verbose mode, or -L d option for debug mode with even more messages. Added olog and oflog in omicron to support filtered logging.
• Improved Texture class to support more initialization options.
• Improved cluster shutdown
• Pointer colors are now based on user id
• Improved command line parsing (#139)
• Modular system configuration (#96)
• Added deprecation warnings (#138)
• Initial support for new installer system