Fix paths in pkg-config file (jbeder#556)

pkg-config should be giving absolute paths rather than relative paths.

Bump version to 0.6.0.

Bump version to 0.5.3.

Bump version to 0.5.3.

Bump version to 0.5.2

Bumped version to 0.5.1

Merged ? fix from core

Bumped version to 0.3.0

Bumped version to 0.2.7

Switched project label to use 'nicer' suffix (e.g., md instead of /MD)