Use cp instead of mv, as it would fail if tmp_dir is mounted on a dif…

[sencenan]

Use cp instead of mv, as it would fail if tmp_dir is mounted on a different device from the plugin_dir. The tmp_dir is cleaned after copy already.

This fixes:

EXDEV, cross-device link not permitted '/tmp/git/1433949300428/Example'

when installing from git repository

[nikhilkh]

@TimBarham @omefire to take a quick look

[omefire]

I'm trying to reproduce this error. @sencenan does this happen as well when you use different partitions of the same device ? or is it only on totally different devices ?

[sencenan]

@omefire my workspace and /tmp are mounted on different hard drives.

Please also see this comment:

cordova-lib/cordova-lib/src/cordova/lazy_load.js

Line 299 in 024b970

// Create a tmp dir. Using /tmp is a problem because it's often on a different partition and sehll.mv()

This is a known issue.

[omefire]

LGTM !