v2 api - return bootable attr value on volume list

Add bootable to the list of values returned by display_list.  This
was returned in v1 api, and is still in v2 header, but was missed
in the new implementation.

Closes-Bug: #1232287

Change-Id: If7460b1c8ab4af417117c4bf6cfdccc5fcf21f46
Check for backing lun on iscsi target create

Check to verify the backing lun was actually created and not just
the controller lun.  If it was NOT created, attempt to issue
tgtadm --op new to see if we can recover.

If this fails, then we want to actually fail in Cinder rather than
pretending that everything went well, so we'll log the error and raise.

Change-Id: I3cabab0d214c051267638a627664df2b673236e3
Closes-Bug: #1226337
Improve gpfs config flag help text readability

Modify the help text for gpfs configuration flags so that it
reads more clearly.

Closes-Bug: #1233288

Change-Id: Iea41bceb496dfaa1f8625a6e3abb31794838213d
Storwize SVC driver hostname can't start with number

Storwize family storage does not allow host identifier start with
a numeric number. Otherwise cinder initialize_connection() API will
throw exception due to such invalid host name in the connector. The fix
is to add a '_' symbol as prefix if the host identifier in connector
starts with non-alphabet letters.

Closes-Bug: #1233952
Change-Id: Ia88afc373e2635c10c3f6256331a4fd90f51f4b8
Fixes incorrect class path in logging_sample.conf

It seems to be a leak in 'Change-Id:
I95d23aafe19b12d4a427149aa5f7a66394d178c6'.

Change-Id: I4c2777049ec9e301a1f05b3a7b4aa5dd71c033e3
Closes-Bug: #1233985
Merge "Check for backing lun on iscsi target create"
Merge "v2 api - return bootable attr value on volume list"
Merge "Improve gpfs config flag help text readability"
Merge "Storwize SVC driver hostname can't start with number"
Merge "Fixes incorrect class path in logging_sample.conf"