Get use-pip-manifest to ignore '-e' dev versions

This patch gets use-pip-manifest to also ignore pip entries
introduced with the -e specifier, as they are editable
development versions, rather than versioned packages.

Change-Id: I581eebb3db5595d9b0e6154f9f78e19ccf0bca6b
RabbitMQ - Ensure node name comparisons are case insensitive

Heat generated hostnames can have uppercase letters, while cloud-init
will convert these to all lowercase. By ensuring comparisons are case
insensitive, the `if [ "$MASTER" = "$LOCAL" ]` etc tests succeed.

Change-Id: I3806f5e8beb3e9043e1d1c88bcdfe525af940971
Merge "RabbitMQ - Ensure node name comparisons are case insensitive"
Merge "Get use-pip-manifest to ignore '-e' dev versions"