moves `loadFile` function inside the `load` function, per @doowb's suggestion
move utils into dir
update readme docs with new options
update readme docs with new options
Merge branch 'modules'
Merge commit 'c81759c9e1e7b4a2b94f2ff54437652496ac1374'
Merge pull request #325 from adjohnson916/master

add support for plugins
Merge branch 'github.com/master'
Merge pull request #327 from adjohnson916/master

externalize plugin support, integrate resolve-dep, and add tests for loading plugins
Merge branch 'github.com/master'
adds `eqnull: true` to isUndefined util
updates helper examples
0.4.10
Merge pull request #329 from jonschlinkert/master

0.4.10
fixes failing helper tests, updates readme
Merge pull request #331 from jonschlinkert/master

fixes failing helper tests, updates readme
adds plugin examples (permalinks)
0.4.11
Merge pull request #333 from jonschlinkert/master

0.4.11
Merge branch 'master' of https://github.com/assemble/assemble