Fix Issues with Glide and Version Discovery
Fix Issues with Glide and Version Discovery

This patch fixes the method used to discover the path to the libStorage
cached source when it is used and vendored by another project, such as
REX-Ray.

akutz/rexray,akutz/libstorage,codedellemc/rexray,akutz/rexray,codedellemc/libstorage,akutz/rexray,akutz/rexray,emccode/rexray,emccode/rexray,akutz/libstorage,codedellemc/rexray,emccode/libstorage,codedellemc/rexray,akutz/libstorage,thecodeteam/rexray,cduchesne/rexray,cduchesne/rexray,codedellemc/libstorage,thecodeteam/rexray,emccode/rexray,MatMaul/libstorage,emccode/libstorage,cduchesne/rexray,MatMaul/libstorage,MatMaul/libstorage,oppodeldoc/rexray,emccode/libstorage,MatMaul/libstorage,thecodeteam/rexray,emccode/rexray,oppodeldoc/rexray,thecodeteam/rexray,akutz/libstorage,codedellemc/libstorage,oppodeldoc/rexray,codedellemc/rexray,thecodeteam/rexray,akutz/rexray,codedellemc/libstorage,akutz/rexray,emccode/libstorage,cduchesne/rexray,akutz/libstorage,emccode/libstorage,thecodeteam/rexray,MatMaul/libstorage,cduchesne/rexray,akutz/libstorage,codedellemc/rexray,emccode/libstorage,oppodeldoc/rexray,codedellemc/libstorage,codedellemc/libstorage,oppodeldoc/rexray,oppodeldoc/rexray,cduchesne/rexray,codedellemc/rexray,MatMaul/libstorage