Merge pull request #33 from Srirangan/master

fs_extra.copySync
copy.js cleanup
updated to the latest `jsonfile` version `1.1.0` which gives `options` params for the JSON methods. Closes #32
update readme
v0.7.1
update readme path to v1.0.0
readme update
`filter` parameter `fs.copy` and `fs.copySync`

`filter` can be a function or a regular expression

for filter:function, `filter(src)` must be true for copy
for filter:RegExp, `filter.test(src)` must be true for copy
merge 0.7.1