Added the perlbrew init command and version of perlbrew changed.

After installing perlbrew and checking the version available,
the perlbrew init command should be run before proceeding
further to install a version inside perlbrew.Also the version
of perlbrew to install is changed to perl-5.14.4 (from perl-5.14.2).
Add ash13 name
Merge branch 'ash13-pr/perlbrew_init_correction'