Support drag and drop of files onto the app window.
Remove the original shell implementation of drag-and-drop files on Windows.
Move the new implementation of opening the dropped files API to the platform specific client handler file so that we can convert native file paths on Windows to Unix file paths.
Fix an issue that is opening left-over files from previous failure of drag-and-drop files.
Merge branch 'master' into glenn/drag-and-drop
Merge branch 'glenn/drag-and-drop' of https://github.com/adobe/brackets-shell into glenn/drag-and-drop
Simplified drag and drop
Fix windows compile problems.
Review comments
Merge pull request #272 from adobe/glenn/drag-and-drop

Add brackets.app.getDroppedFiles() function
whitelist for windows binary files
Platform 32bit/64bit check, download pertient nodejs v0.8.20 binary package and place in deps
Merge pull request #275 from timburgess/linux_setup

Linux setup changes
Merge pull request #274 from adobe/jasonsanjose/issue-4403

whitelist for windows binary files
Don't detect the network drive if the path does not exist.
Return an error if the path for network drive detection does not exist.
Merge pull request #281 from adobe/rlim/crash-issue-4410

isNetworkDrive API returns an error if the path for network drive detection does not exist.