Renamed 'constants' to 'predefined' to match normal naming.
Merge branch 'develop' of github.com:IcecaveStudios/agenda into develop
Work in progress
Working on generic cron parser formats
Added basic generic cron expression field parsing.
Fixed integer range period tests.
Added basic tests for Generic Scheduler.
Not all tests are passing yet, needs TDD to fix cron parsing.
Removed WIP Generic parser, it will be moved to feature branch.
Merge pull request #3 from koden-km/develop

Predefined schedule parsing is done.