fix indentation and simplify some code
(pig-indent-line): fix indentation after a line with comment
issue#17: (pig-statement-indentation): avoid infinite recursion
Merge pull request #20 from sam-s/master

(pig-indent-line): fix indentation after a line with comment
(pig-basic-functions): all elements must be upcase because that is how the constant is used
Merge pull request #21 from sam-s/master

(pig-basic-functions): all elements must be upcase because that is how t...