Added Label class

Added a new class Label and made ChemLabel its subclass.
Add label for cycle name
Changed Label.as and ChemLabel.as

Use protected instead of private for some methods in Label.as to clear
code in ChemLabel.as
Add cycle name display

Added the ability for the Cycle class to display the name of the cycle.
Test
Added different mode

Added toggle to swtich between Cycle mode and CycleGroup mode.
Update CycleGroup.as

Correct the end-of-line format in CycleGroup.as
Cleanup
Merge branch 'test-tomerge'
Merge branch 'master' of https://github.com/shunghsiyu/TheCycle