Update version number and release date for v7.11

INSTALL

@@ -102,12 +102,12 @@ You can also run configure  in a separate build-only directory tree.  This
 feature requires GNU Make and allows you to keep the source code tree from
 being modified by  the compilation process.  To use  this option, create a
 separate build directory, then run  configure.  For example, if you placed
-the Star Traders source code tree in $HOME/src/trader-7.10,  you could run
+the Star Traders source code tree in $HOME/src/trader-7.11,  you could run
 something like:
 
-    mkdir $HOME/build/trader-build-7.10
-    cd $HOME/build/trader-build-7.10
-    $HOME/src/trader-7.10/configure
+    mkdir $HOME/build/trader-build-7.11
+    cd $HOME/build/trader-build-7.11
+    $HOME/src/trader-7.11/configure
 
 Once again, the Autoconf manual describes these options (and many others):
 

NEWS

@@ -15,8 +15,8 @@ browse  the Git repository on  The ZAP Group  web server  at the following
 location: http://www.zap.org.au/gitweb/trader.git
 
 
-Version 7.11 (not yet released)
--------------------------------
+Version 7.11 (18th June, 2017)
+------------------------------
 
 Bug fix:  some architectures (such as ARM, PowerPC and S390)  treat "char"
 as "unsigned char",  and this caused  b64decode()  to fail while loading a

doc/trader.6

@@ -41,7 +41,7 @@
 .if \n[.g] .mso www.tmac
 .\"
 .\" *********************************************************************
-.TH TRADER 6 "2nd June, 2017" "Unix-like systems"
+.TH TRADER 6 "18th June, 2017" "Unix-like systems"
 .SH NAME
 trader \- a game of interstellar trading
 .\" *********************************************************************