Fix for problem of ssh user password when cloning repository

Cloning a repository in Eclipse/JGit using ssh jgit expects the string "Password: " from the ssh server. This fails for some ssh implementations because the string differ. In Linux and Solaris for example the string is "username's password: ". To make it more robust expecting something including the string "password" (case ignored) should be sufficient.

The bug [360862](https://bugs.eclipse.org/bugs/show_bug.cgi?id=360862) has relevance to this issue.