Merge pull request #259 from humphd/develop

Fix #258 - Queued fs calls hang when fs goes into error state due to pro...
v0.0.24
Fix #261 - include path in errors
A few fixes
Add stacks
Comment out unused errors for space saving on filer.js
Merge pull request #262 from humphd/issue261

Fix #261 - include path in errors
v0.0.25
Failing test for #267, readdir on file path should error
Fix for readdir and non-dir paths
Merge pull request #268 from humphd/issue267

Fix #267, readdir on file path should error
v0.0.26
Fix #266 - let FileSystem ctor figure out if an existing filesystem exists
Merge pull request #269 from humphd/issue266

Fix #266 - let FileSystem ctor figure out if an existing filesystem exists
Fix #270 and #276 - pathCheck should handle undefined paths and fix INAVL typo
Merge pull request #271 from gideonthomas/issue270

Fix #270 - pathCheck should handle undefined paths
v0.0.27
remove outdated examples
remove zip/unzip from shell
cleanup