Singularity Python v3.4.2

tweaks to recipe to not care about caps for stages

Signed-off-by: Vanessa Sochat <vsochat@stanford.edu>

Singularity Python v3.0.0

This more correctly runs secure build with Singularity 3.2.1, but the version string wasn't updated here.

Singularity Python v2.5

Corresponds with current builder version, archiving branch for safe keeping.

Singularity 2.4.1 Release

This release coincides with the Singularity 2.4.1 release.

Singularity 2.4 Release

This release corresponds with the 2.4 release of Singularity. Singularity Python is version 1.2.1.

Singularity 2.3 Release

This release of Singularity Python coincides with the 2.3 release of Singularity, and for Singularity Hub, and the shub command line utils used in the Singularity Hub paper.