Eradicate last of underscores in options

The --ip_range in stack.sh remains due to nova-manage needing to be fixed.

(Rebased 05Dec2013)

Change-Id: Ic0f93d41b6edfdc5deb82ae820e2c0c5a8bce24e
Fixed check method of $USE_GET_PIP

'[[ -n "$USE_GET_PIP" ]]' always TRUE
because $USE_GET_PIP is '0' or '1'.

Change-Id: I73c4c6befe2126882ef21991b2a3fe712b2ac388
Closes-Bug: #1259824
Allow heat tests to use already uploaded test image

If $HEAT_FETCHED_TEST_IMAGE is set then tempest is configured to
use the image named $HEAT_FETCHED_TEST_IMAGE for any orchestration
tests which require an image.

Fallback to checking $HEAT_CREATE_TEST_IMAGE and invoking
diskimage-builder if necessary.

The intent is to use Fedora 20 as the test image for gating
since this image has heat-cfntools already installed.

Change-Id: I177ae091a641ba99fd4c618e30a39c5148ae617f
Handle the case of pipe char in value for iniset

iniset did not handle the case of "|" in the value
to be injected. Fix this by replacing | with \000 (NULL).

Fixes bug #1258050

Change-Id: I8882c2f3f177ebdfa0c66270dbbc7fd50f30b065
Merge "Eradicate last of underscores in options"
Merge "Handle the case of pipe char in value for iniset"
Merge "Allow heat tests to use already uploaded test image"
Merge "Fixed check method of $USE_GET_PIP"