CB-5438 Exclude local symlinks from jshint

Both /src/test/androidexec.js and /src/test/iosexec.js are symlinks to
/src/android/exec.js and /src/ios/exec.js

Symlinks don't work on the Windows platform and are represented there as
a text file with the contents being a text description of where it
should be pointing at.

The problem is that the jshint task of the build tries to parse those
'text' files as js files, which fails for obvious reasons.

My solution is to explicitly exclude those 2 symlink files from the
jshint task. The files they point at are included in the src/**/*.js
jshint src setting, so they will get checked anyway.

Now we can succesfully run grunt build on Windows.
Merge branch 'CB-5438' of https://github.com/BBosman/cordova-js
CB-5973 blackberry: add support for sync exec
CB-5973 blackberry: use sync by default
Update exec.js

The spec implies that the last argument of cordova.exec() should be optional.  However, if it is omitted, iOS emits a cryptic NSInvalidArgumentException.  This can be avoided if actionArgs defaults to an empty array.
CB-6007 Fix findCordovaPath() not working when path contains a query param
CB-5438 Remove test symlinks & fix some build errors on windows.
Move all deps into devDependencies.
Add back "grunt btest" command
CB-5438 Use jsdom-nogyp to avoid dependency on python & visual studio
CB-5671 Don't fail plugin loading if plugin modules are already loaded.

This can happen when a build step concats all your JS.
CB-5671 setTimeout to allow concat'ed JS to load before pluginLoader.load()
Add NOTICE file
CB-6181 android: Always execute exec() callbacks async.
CB-6184 android: Delete incorrect log message about falling back on PROMPT
CB-6321 Added cordova integration info to README
Fixed "WARNING: file name src\ubuntu\platform.js is missing the license header" during compile

github: close #67
CB-5606 WP8. ArrayBuffer does not exist in WP7

github: close #65
CB-6388: Add base64.toArrayBuffer() method to support binary data from the LOAD_URL bridge
Merge branch 'master' of https://github.com/apache/cordova-js