Merge pull request #8 from SmartCat/gaf_4_develop

Added timeline pointer to tags
Merge pull request #9 from SmartCat/gaf_4_develop

Refactored timeline processing
Merge pull request #10 from SmartCat/gaf_4_develop

Gaf 4 develop
- eliminated a bunch of warnings
- few more work for gaf 4
Merge pull request #2 from CatalystApps/gaf_4_develop

- [fastforward] Gaf 4 develop