Prep for 2.4.42

CHANGES

 OpenLDAP 2.4 Change Log
 
-OpenLDAP 2.4.42 Engineering
+OpenLDAP 2.4.42 Release (2015/08/14)
 	Fixed liblber address length for CLDAP (ITS#8158)
 	Fixed libldap dnssrv potential overflow with port number (ITS#7027,ITS#8195)
 	Fixed slapd cn=config when updating olcAttributeTypes (ITS#8199)

build/version.var

@@ -15,9 +15,9 @@
 ol_package=OpenLDAP
 ol_major=2
 ol_minor=4
-ol_patch=X
-ol_api_inc=20441
+ol_patch=42
+ol_api_inc=20442
 ol_api_current=12
-ol_api_revision=4
+ol_api_revision=5
 ol_api_age=10
-ol_release_date="2015/06/21"
+ol_release_date="2015/08/14"