Begin work on FileSystemShell and touch command
Working touch command with tests
Add shell.exec with test
Deal with jshint hating the Function constructor
Fix shell.cd and add tests
Add cd test for symlink'ed dir
Add Shell.cat() with tests
Add shell.ls() with tests
Add shell.rm() with tests
Add support for shell.env, PWD, TMP, and tempDir, with tests
Update docs for shell changes
Readme fixes
More Readme fixes
More README fixes
Review fixes
Change sh.exec to take a list vs. object for passed args
Share code from lib/async.js instead of inlining nextTick in Memory provider
Merge pull request #114 from humphd/issue98

[WIP] Initial work on FileSystemShell and fs.Shell(), fixes #98