2.2.7

Fixes a bug in mport install command that might result in a segmentation fault.

This only happens when using a port name with a hypen in it and is related to the feature supporting version numbers
e.g.
qt5-webkit triggers it if it's not found in the index
gmake-4.3.0 would also trigger it if it's not found, but would work if it is found in the index.