do not update submodules before each build.

add tolua to .gitignore, it's not a proper submodule.

.gitignore

@@ -1,40 +1,41 @@
-.vscode/
-*.orig
-eressea.ini
-Debug
-Release
-
-# SlickEdit
-*.vtg
-*.vpwhistu
-
-# Microsoft Visual Studio build artefacts
-src/Debug/
-src/Release/
-src/*.vcproj.*.user
-Debug/
-Release/
-ipch/
-*.ipch
-*.ncb
-*.opensdf
-*.pdb
-*.sdf
-*.suo
-*.user
-
-*~
-*.bak
-bin/
-build*/
-*.log
-*.log.*
-tags
-Thumbs.db
-.gdb_history
-*.cfg
-*.cmd
-tmp/
-tests/config.lua
-tests/reports/
-tests/data/185.dat
+tolua/
+.vscode/
+*.orig
+eressea.ini
+Debug
+Release
+
+# SlickEdit
+*.vtg
+*.vpwhistu
+
+# Microsoft Visual Studio build artefacts
+src/Debug/
+src/Release/
+src/*.vcproj.*.user
+Debug/
+Release/
+ipch/
+*.ipch
+*.ncb
+*.opensdf
+*.pdb
+*.sdf
+*.suo
+*.user
+
+*~
+*.bak
+bin/
+build*/
+*.log
+*.log.*
+tags
+Thumbs.db
+.gdb_history
+*.cfg
+*.cmd
+tmp/
+tests/config.lua
+tests/reports/
+tests/data/185.dat

s/build

@@ -33,8 +33,6 @@ if [ ! -d $ROOT/$BUILD ]; then
   exit
 fi
 
-git submodule update
-
 echo "build eressea"
 cd $ROOT/$BUILD
 VERSION=$(git describe --match 'v*.*.*' --tags | sed 's/^v//')