ntp update

[kreczko]

Since we now have some more dependencies it would be useful if one could update them without re-doing the workspace.
This also includes the pre-workspace dependencies defined in bin/env.sh:

• conda + pip
• hepshell
• git wget pycurl python-cjson

From these projects hepshell is the fastest changing pip install -U git+https://github.com/kreczko/hepshell.git