Update PE shipping to use reprepro and archive

This commit updates the shipping of PE deb packages to the new archive
directories which will be used in composition. It also replaces the
pe:remote:freight task with pe:remote:apt, which (tool agnostic) remotely
executes the reprepro add of the deb files.

Signed-off-by: Moses Mendoza <moses@puppetlabs.com>
Add crude cleanup of PE debs. Eventually this will be moved out of here
Merge pull request #196 from MosesMendoza/maint/master/update_pe_ship_for_reprepro

Update PE shipping to use reprepro and archive