create a class to represent a vector of a method
create a class for creating ASTs
create a class for parse ASTs
create a data class for a method
implement a function to create and keep instances of MethodData in ASTAnalyzer.java
[MINOR_CHANGE] remove a tab
Merge pull request #2 from k-hotta/master

a pull request at the end of the implementation of ASTAnalyzer at 130730