tree map implementation
Clean up
Fixed bug, added tests.
Cleaned up main method
Last working copy
Remove copyright notices. Refactor OrderBook.addOrder, OrderBook.removeOrder.
Added ability to read from standard input
Removed test classes, removed JUnit dependency. Cleaned up a bit.
Added README with answers to questions.
Merge branch 'tree_map'

Conflicts:
	pom.xml
	src/main/java/com/rgmadvisors/pricer/PricerMain.java
Fixed merge errors.