Updated `module/unit': fix, update, cosmetic

Enable all modules before unit tests commence.

Fixed a small reporting issue.
Updated `module/remote': clean

Dependency on `module/ldap' removed; this module no longer (directly
at least) depends on the ldap module.

The `.eval()' suffix cleanup applied.
Updated `module/hgd': graceful degredation
Unit test `hgd' updated
Updated `module/util': encapsulated `jsontool'
Unit test for `util' updated
Updated `module/cpf': added `HAS_AUTOED' theme option
Updated `module/gpg': clean
Updated `module/net': new, clean

New:

    :net:localportping() - for checking if a local tcp port is open or
    not without using a client (but using netstat instead).

    :net:freelocalport() - for finding free local ports to bind to,
    optionally taking a list of preferred ports to check first.

Cleanup:

    General cleanup.
Updated `module/ng': clean
Updated `module/vault': new, clean

The public `read()' function was split up into public and internal.

Unit test for the new private function added.

Cosmetic rearrangement of code.
Updated python code to align with vault module
Updated `libexec/softlayer': flag for cache added

Added a programatic flag (variable) to enable/disable caching, and
set that to false as softlayer API calls are not too costly.
New `module/softlayer'

New site module that interfaces with `extern/softlayer'.
New `module/mongo'
New `module/tunnel'
New `module/pagerduty'
Fixed `module/git'

The `git:commitall()' function only worked as expected when executed
from the base of the git repository; fixed.
Fixed `libexec/ssh': `secret' -> `vault' rename
Added `module/tunnel' unit tests: KLOSES nima/site#18