vimpack list is way to slow

[bramswenson]

vimpack list currently downloads data from the internet to show version info. This shouldn't be required and slows the process down allot. This needs to be reworked to either glean the version from the filesystem, or just not show it at all, or show version info (and deal with slowness) when given a switch like 'vimpack list --detailed

[bramswenson]

Issue #21 was basically a dup. I suspect it lies due to the fact that it never completes the stupid meta data fetch for each installed plugin. This could also happen if one installed a plugin without using vimpack. vimpack list should handle all these cases with grace.