CB-6437 [Improvements & support for more platforms]

-Added full compatibility cross platform
-Working with absolute paths
-Added support for Blackberry10, Windows 8 and Windows Phone 8
-Added functionality to add platforms according to the development
environment
-- Android, Blackberry, iOS ---> Mac.
-- Android, Blackberry, Windows 8, Windows Phone 8 ---> Windows 8.
-- Android, Blackberry ---> Linux or any other Windows OS.
- Added more requirements checks
- Added functionality to delete project folder if exists (recursive
function)
- Added functionality to locate libraries
- Added function to copy with exclusion list
- Added createmobilespec.bat & createmobilespec.sh
- Added symlink for windows & Linux based OS.

Changed tabs for spaces
My mistake, it's done.

Added logic to kill ADB.exe, apache header
Apache header added to createmobilespec.cmd & createmobilespec.sh
- Added logic to kill ADB.exe process under windows, when locks project
folder.

createmobilespec cmd & sh

Changed comments to # in sh file
Indent to 4 in Apache license header

Added args logic & other changes

Added:
-Logic to deal with arguments, to accept platforms.
-Logic when no arguments are present, to fail and throw error.
-Support for help argument, to show usage.

Supported platforms (args): --android, --ios, --blackberry10, --wp8,
--windows8.
Removed: top level function for custom copy
Changed:
-Path directory for mobilespec, current location at
cordova-coho/mobilespec.
-link-to instead of copy for mobilespec project.

Changes createmobilespec

-Deleted top level functions.
-Used optimist methods to print help.
-Changes on paths.
-Other minor changes.

Removed, unnecessary outputs

shows help when error, mobilespec peer of coho

-Changed mobilespec project as cordova-coho peer.
-Added usage description, to set more usage information.
-Changed error outputs with help output and notice messages.
CB-6437 fix paths for OS X
Add a dummy module to echo plugin to ensure it's not run on start-up
CB-6549 use relative path to link assets

Changed: Use relative path instead of absolute path, to link the
cordova-mobile-spec repository with the mobilespec project. This is needed
for Windows-based dev workstations.

github: close #59
CB-6550 added/updated README.md

Added: Requirements & instructions to use createmobilespec module.
Updated: project setup usage.

github: close #60
CB-6525 Assert that fs.root.toURL() does not use cdvfile:
Don't use new File or new FileWriter in tests. Use getFile() and createWriter().
CB-6491 add CONTRIBUTING.md
Restore change that was accidently lost in a pull request.
CB-6571 Add test for DirectoryEntry.toURL() having a trailing slash
CB-6583 Add file tests that have spaces in paths