fixes some edge cases (macros f.e)
adds support for new macro call
added brackets for sameas test to pass test negation
Merge pull request #70 from kokec/sameas_fix

Brackets for sameas test to pass test negation
Fixed typo in doc
Merge pull request #71 from jeremyFreeAgent/fix/typo

Fixed typo in doc
updates plovr version to latest release
exposes escape function