Check in the initial version of the cordova project

This includes three changes:
- Sample javascript file: This displays the standard cordova home page, with
  the addition of the sqlite3 plugin, that implements the plugin's test case.
Basically, if you see three popups, everything is working...

- Sample native code: It looks like these changes are not overwritten by the
  build, only the javascript parts are.  Since this is the crossplatform
exploration, the next step is to merge all the code over from the native
specific code to here.

As a bonus, we get command line builds for free!

- Add a gitignore for ios to ignore xcode workspace change files to make it
  easier to rebase changes
Merge branch 'cordova-crossplatform' of https://github.com/shankari/e-mission-phone into cordova-crossplatform