Update copyright for 2015

Backpatch certain files through 9.0

src/backend/access/common/heaptuple.c

@@ -45,7 +45,7 @@
  * and we'd like to still refer to them via C struct offsets.
  *
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/access/common/indextuple.c

@@ -4,7 +4,7 @@
  *	   This file contains index tuple accessor and mutator routines,
  *	   as well as various tuple utilities.
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/access/common/printtup.c

@@ -5,7 +5,7 @@
  *	  clients and standalone backends are supported here).
  *
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION

src/backend/access/common/reloptions.c

@@ -3,7 +3,7 @@
  * reloptions.c
  *	  Core support for relation options (pg_class.reloptions)
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/access/common/scankey.c

@@ -3,7 +3,7 @@
  * scankey.c
  *	  scan key support code
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/access/common/tupconvert.c

@@ -9,7 +9,7 @@
  * executor's "junkfilter" routines, but these functions work on bare
  * HeapTuples rather than TupleTableSlots.
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *

src/backend/access/common/tupdesc.c

@@ -3,7 +3,7 @@
  * tupdesc.c
  *	  POSTGRES tuple descriptor support code
  *
- * Portions Copyright (c) 1996-2014, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  *