allow to ignore a file by browser field

fixes #186
1.0.4
follow the browser-module spec: ignoring export an empty module.

fixes #187
1.0.5
Small README.md fix

Fix link in the dependency list.
Merge pull request #188 from polotek/patch-1

Small README.md fix
rename generated require to __webpack_require__

fixes #141
fixes RubenVerborgh/N3.js#18
bigger timeout for test
add json as default extension.
clever warning for module parse errors.

#184
assign to require define require in current scope
bug fix in jsonp template
1.1.0-beta1
test that assign to require defines require
added externals option
more options for externals
externals example
use externals plugin for node target
ignore warning for node template plugin test
1.1.0-beta2
Revert "cache the replaced source for performance"

This cannot be cached because module ids may change.

This reverts commit 8a7b508165ee05bb01f64a9c4e3bb7d63c471443.

fixes webpack/grunt-webpack#19