Add boost to automatically trigger Shadow Dragon

Also silence Shadow Dragon when run automatically
Add cost of 5 Bonemeal each time Shadow Feeder activates.
Scale TF Load Letter into 10T
Merge pull request #694 from mrkeldon/master

Add boost to automatically trigger Shadow Dragon
Merge pull request #700 from eqbot/master

Refactoring sandSpent
Merge pull request #701 from Dorus/master

Scale TF Load Letter into 10T
prevented possible total boost error
Merge pull request #702 from D0rako/master

Fixed possible boost total error
Merge pull request #3 from eternaldensity/master

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