fix a chicken and egg problem at loading.

If you want to put call minimap#ShowMinimap() in your vimrc, you can end
up with this error:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
    File
    "/usr/local/google/home/gbin/.vim/bundle/vim-minimap/autoload/minimap.py",
    line 70, in ShowMinimap
        vim.command(":MinimapUpdate")
        vim.error: Vim:E492: Not an editor command: :MinimapUpdate

It fixes it by calling directly the function and not the command.
Fixes the visual mode.

See #7
Merge branch 'fixloading'
Merge branch 'visualfix'
put a probably softer color in the minimap

WarningMsg can be mapped to red or orange.
This sets it as your selection color which is probably more neutral.
Merge pull request #8 from gbin/master

ignore the pyc for git.
Merge pull request #9 from gbin/fixloading

fix a chicken and egg problem at loading.
Merge branch 'master' of https://github.com/severin-lemaignan/vim-minimap
Merge branch 'dontwarn'

Conflicts:
	autoload/minimap.py