working on gcj.pc.pp.ShoppingPlan
 - add try01, try02
Merge branch 'master' of https://github.com/webos21/algorithm.git

Conflicts:
	src/org/xi/aquiz/gcj/pc/pp/ShoppingPlan.java
	src/org/xi/aquiz/gcj/pc/pp/ShoppingPlanTry01.java