update changelog and release script

cm_changelog.txt

@@ -74,6 +74,9 @@ This is usable for any OpenTTD servers
 
 == CHANGELOG ==
 
+*** 1.6.1 (24 Jul 2016) ***
+- Minor bugfixes
+
 *** 1.6.0 (2 Apr 2016) ***
 - Added active stations highlight to town zoning. Outlines stations that have been serviced in last ~50 days (as in checks for authority rating and town growth rate).
 - Fixed next counter in town window (was always showing -1 in case of custom growth rate). Also show * after GR value for a custom rate (set by GameScript or server patch).

release.sh

@@ -1,7 +1,7 @@
 TMP="/tmp/cmclient"
 WIN="/var/run/media/pavels/F8040EC2040E843A/cmclient"
-VER="1.6.0"
-CMVER="1.6.0"
+VER="1.6.1"
+CMVER="1.6.1"
 TMP_SRC="$TMP/openttd-$VER"
 DIR=`pwd`
 SRC_RELEASE_FNAME="$DIR/citymania-client-$CMVER-source.zip"