Update ChangeLog and bump version for v1.15.2 release

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

ChangeLog.md

@@ -4,12 +4,21 @@ Change Log
 All notable changes to the project are documented in this file.
 
 
-[UNRELEASED][]
---------------
+[1.15.2][] - 2016-06-06
+-----------------------
+
+Bug fixes and minor feature creep in `pkg-config` support.
 
 ### Changes
 - Prevent mangling of symbols when linking with C++.  Patch courtesy of
   Jakub Pawlowski
+- Add `libeditline.pc` for `pkg-config`
+
+### Fixes
+- Do not assume a termcap library exists, check for `tgetent()` in
+  curses, ncurses, tinfo and termcap libraries
+- Call `tty_flush()` when user calls `rl_forced_update_display()`
+  to prevent screen becoming garbled.  Patch by Jakub Pawlowski
 
 
 [1.15.1][] - 2015-11-16

configure.ac

@@ -1,11 +1,11 @@
-AC_INIT(editline, 1.15.2-beta1, https://github.com/troglobit/editline/issues)
+AC_INIT(editline, 1.15.2, https://github.com/troglobit/editline/issues)
 AM_INIT_AUTOMAKE([1.11 foreign no-dist-gzip dist-xz])
 AM_SILENT_RULES([yes])
 
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_SRCDIR([src/editline.c])
 AC_CONFIG_HEADER([config.h])
-AC_CONFIG_FILES([Makefile src/Makefile include/Makefile man/Makefile examples/Makefile])
+AC_CONFIG_FILES([Makefile libeditline.pc src/Makefile include/Makefile man/Makefile examples/Makefile])
 
 # Checks for programs.
 AC_PROG_CC