Remove the hard-dep on six

It looks like it is no longer needed, but leaving it commented
until we do some more tests.
Add some notes about the package split.

* in description line
* in readme
* add each package crate icon and link.
Merge remote-tracking branch 'kali/hotfix/remove-six-hard-dep' into develop
Merge remote-tracking branch 'kali/bug/more-descriptive' into develop
Merge remote-tracking branch 'kali/hotfix/add_manifest_license' into develop
add bypass var for init files
Merge remote-tracking branch 'kali/bug/bypass-init-install' into develop
Use dirspec instead of plain xdg. Closes #3574.
Merge remote-tracking branch 'ivan/feature/3574_use-dirspec-instead-of-xdg' into develop
Use soledad.server namespace in init script
add fix to debian initscript to use new namespace
Merge remote-tracking branch 'chiiph/bug/fix_init_script' into develop
Fold in changes.
Merge tag '0.3.2' into debian

Tag leap.soledad version 0.3.2
Fix changelog

The last entries for common really belonged to 0.3.1
Update version to 0.3.2, add python-dirspec dependency
Merge remote-tracking branch 'kali/debian-0.3.2' into debian