Add script to validate schema changes.

Basic assertions about version updates

travis-compile.sh

@@ -2,6 +2,8 @@
 
 set -e
 
+./servatrice/check_schema_version.sh
+
 mkdir build
 cd build
 prefix=""
@@ -20,4 +22,4 @@ if [[ $BUILDTYPE == "Debug" ]]; then
 else
 	cmake .. -DWITH_SERVER=1 -DCMAKE_BUILD_TYPE=$BUILDTYPE -DWITH_QT4=$QT4 $prefix
 	make package -j2
-fi
+fi