Added removing files recursively reference to find.md page
added mkdir page for osx
fixed typo in mkdir
Fixed os.tmpdir for older version of node
Merge pull request #24 from ruyadorno/find

Added removing files recursively reference to find.md page
Merge pull request #29 from arshad/master

TypeError: Object #<Object> has no method 'tmpdir'
Merge pull request #25 from marekhrabe/master

Added mkdir page for osx
Merge pull request #27 from andrewboerema/master

new page for rsync. Fixes #17
new page for du
new page for df

* fixes #14
Merge pull request #30 from shrayas/du

Adding a page for du
Merge pull request #31 from shrayas/df

Adding a page for df