Perlbrew Release 0.62

perlbrew 0.62 is released on 2013-04-07T17:43:58+0800

Changes

Fix list-modules under lib env. It lists all modules in the lib, and in the base.
Use the original grep command to prevent aliases from breaking the content of init. GH #307
perlbrew alias help is now the same as perlbrew help alias
perlbrew exec --with ... now preserve the order of specified names.