Merge tag 'v2.4.6'

v2.4.6
Depend on nodefly-register from npmjs.org
Merge pull request #124 from strongloop/feature/dep-on-nodefly-register

Depend on nodefly-register from npmjs.org
Change reference to `slc help` to `slc --help`
Merge pull request #125 from strongloop/feature/fix-help-reference

Change reference to `slc help` to `slc --help`
Revert "preinstall: update peerDeps before global install"

This reverts commit 3f3c986f1b4ac8abcc5163bd52e65d9fc85c8b68.
v2.4.7
Merge branch 'release/2.4.7' into production