IOCS_APPL_TOP must be absolute path

Fix a recently introduced problem where cdCommands and envParams
had TOP as a relative path (which actually worked by chance).
Also fixed a problem with convertRelease hanging when the -t
argument matched the absolute path to TOP.

src/makeBaseApp/top/configure/CONFIG_SITE

@@ -13,21 +13,19 @@
 # Normally CHECK_RELEASE should be set to YES.
 # Set CHECK_RELEASE to NO to disable checking completely.
 # Set CHECK_RELEASE to WARN to perform consistency checking but
-#   continue building anyway if conflicts are found.
+#   continue building even if conflicts are found.
 CHECK_RELEASE = YES
 
 # Set this when you only want to compile this application
 #   for a subset of the cross-compiled target architectures
 #   that Base is built for.
-#CROSS_COMPILER_TARGET_ARCHS = vxWorks-68040
+#CROSS_COMPILER_TARGET_ARCHS = vxWorks-ppc32
 
 # To install files into a location other than $(TOP) define
 #   INSTALL_LOCATION here.
-#INSTALL_LOCATION=</path/name/to/install/top>
+#INSTALL_LOCATION=</absolute/path/to/install/top>
 
-# Set this when your IOC and the host use different paths
-#   to access the application. This will be needed to boot
-#   from a Microsoft FTP server or with some NFS mounts.
-# You must rebuild in the iocBoot directory for this to
-#   take effect.
-#IOCS_APPL_TOP = </IOC/path/to/application/top>
+# Set this when the IOC and build host use different paths
+#   to the install location. This may be needed to boot from
+#   a Microsoft FTP server say, or on some NFS configurations.
+#IOCS_APPL_TOP = </IOC's/absolute/path/to/install/top>