Revert "use source instead of bash to support export command; bump to 0.0.6"

This reverts commit af6d1b2e47f922dcc2ef83d0ac70d31ef0d245f2.
Revert "export scripts bin path immediately"

This reverts commit ef2cd33eb964d5327cbee785614c076e1de0526d.
Revert "add scripts to path"

This reverts commit 8f54b6a603b3255f3d0bc8d34dee1bb25d4f864e.