cp -a not available on non NTFS

[bjoernsteinborn]

tasks/deploy/update.js uses "cp" with the parameter "-a" which is only available on NTFS file systems.
(Source: https://www.mkssoftware.com/docs/man1/cp.1.asp)
So the copy task fails from OSX with HFS+.
Should/could be cp -r instead of cp -a.

[gregberge]

@bjoernsteinborn can you submit a PR please?

[bjoernsteinborn]

I will do so. At the moment i hardcoded the change for my needs but will look into making in configurable by parameter and than i create a PR out of it.

[bjoernsteinborn]

Solved with #107