- category.class (a class to manage category) complete and tested
- category.class (a class to manage category) complete and tested
- category.class mod, tag.class mod
- moved db declaration to global variabiles in utils
- added class user with first few methods
- added and tested session
- add getter to user.class
- add document.class with all getter and setter
- add categorized.class and few refactor
- add tagged.class and few refactor
Merge branch 'master' into Aci

Conflicts:
	.gitignore