adding hasObjectOperation()
Remove NullPointerException from With/Without Expression
memorization scheme
Merge pull request #17 from tetsurom/pegquery

Merge ASTQuery
Merge pull request #16 from tetsurom/fix_nullpo

Remove NullPointerException from With/Without Expression
rewrite scheme for flags
Merge branch 'master' of github.com:peg4d/peg4d-java
adding test/flag.p4d
bugs fixed at normalizeImpl
0.2.2 supproted flag <if X> <with X e>..
refactoring
0.2.3 removed trans-capturing property in ParsingContext
0.2.3 removed trans-capturing property in ParsingContext
updated test
adding c test
updated to merge
enabling color in test/testall.sh
bugs fixed at memorization
imporved stat mode
imporved stat mode