Combined changes

[l3ender]

Since there's some weird whitespace that would make merging difficult, this PR combines changes from a few other requests:

• Support multiple/various application targets #64:
  • Support multiple/various application targets (e.g. today extension).
• Use promise-based result for Cordova #66:
  • Use promise to avoid plugin race conditions.

If this branch is desired instead of the others, those PRs can be closed.

[l3ender]

Hello @akofman - anything I can do to help move these changes forward?

[l3ender]

Hi @akofman, have you been able to review and offer any feedback?

[l3ender]

Hi @akofman are you able to review these changes and merge if they look good?

[l3ender]

Hi @akofman, is there anything I can do to assist with getting these changes reviewed and merged? Thank you!

[l3ender]

It's been awhile on this, anything I can do to assist to get the changes reviewed/merged? @akofman