Rename --force-machine to --to
- Use isMaster.localTime instead of eval, fixes #1202480
- Add tons of comments, fallback to previous logic if isServer.localTime is not present.
Improve wording
Temporarily remove azure from provider list
[r=sidnei],[bug=1202480] Use isMaster.localTime instead of eval

In mongo 2.4.x (default in saucy), eval requires admin privileges. Replace by
isMaster which does not require admin privileges (but requires mongo 2.2 at
minimum).

Thanks to Gustavo for the help in implementing the fix.
[r=dave-cheney] Temporarily remove azure provider for the 1.11.3 release.
[r=wallyworld] Rename --force-machine to --to

The --force-machine argument used with deploy and
add-unit it renamed to --to. Some examples are added
to the command docs.

https://codereview.appspot.com/11493043/