Remove explicit --std=c++11 compile-option

Add alpine3 docker for testing and missing include

Automatic version bump to v0.9.0

Automatic version bump to v0.8.0

Add block queue rotational parsing

Automatic version bump to v0.6.1

Automatic version bump to v0.6.0

Add docker images for easier compilation and evaluation

Create a number of Docker spec files that allow users to develop, test
and evaluate pfs on a range of Linux distros with minimal fuss.

Minor improvements and cleaned up styling to keep code consistent

Version bump to 0.4.5