Allow passing isRequire detector as an option
document opts.isRequire
2.2.0
adding support to provide custom parse opts
esprima tolerant: true and removing wrapper

- tolerant parsing does not throw on script level returns
- enforcing this option for parse makes the function wrapper no longer needed
- location info for first line is now correct (see test/parseopts.js)
dropping node 0.6 and adding 0.10 to travis config
2.3.0
Adding support for finding requires in ES6 code
2.4.0
re-indent
upgrade escodegen
tests that fails on noargs function
fixing noargs function case
indent correctly
2.4.1
remove esprima-six, go back to esprima
3.0.0
Use esprima-fb to support es6.