Make the instance initscript local to the instance

Earlier in the patch series a change was introduced with respect to
the initscripts. A per instance initscript was created in /etc/init.d
for each instance. This was simply a symlink to the tomcat6 initscript
(using the instance name). The uber initscript, pki-cad, would iterate over
the installed instances and invoke the per instance initscript.

However during the review process it was pointed out that when
removing (erasing) an rpm the per instance initscripts would not be
removed because they are not in the rpm file manifest. This would
leave dangling initscripts. Also it was felt the per instance
initscript in /etc/init.d was confusing when combined with the uber
initscript.

This patch moves the per instance initscript from /etc/init.d to the
instance directory. It retains the same name (i.e. the instance
name). Now instead of the the uber initscript invoking the per
instance initscript in /etc/init.d via the service command it instead
directly invokes initscript in the instance directory.

This patch also fixes a bug discovered from reading the shell code
invoked by the uber initscript (in the pki "functions" library). The
test to determine if a supplied instance name was vaid was
incorrect. The code did this:

if [ "${PKI_REGISTRY}/${pki_instance}" != "${PKI_REGISTRY_ENTRIES}" ]

however $PKI_REGISTRY_ENTRIES is a space separated list of all
registry instance files, thus the test only succeeds if there is a
single instance. The test was modified to iterate over the all the
entries in $PKI_REGISTRY_ENTRIES.

This patch also fixed the list_intances() function to list only the
instance name, not the full path the to instance configuration
file. We also replaced the use of /bin/ls with a shell glob.

This patch also moves some variables which had been identically
defined in both pkicreate and pkiremove into the pkicommon library for
consistency and maintenance sake.


git-svn-id: svn+ssh://svn.fedorahosted.org/svn/pki/trunk@1572 c9f7a03b-bd48-0410-a16d-cbbf54688b0b

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