Add checksums file to .gitignore

Author: Julian Kast

MobileWeather/.gitignore

@@ -8,7 +8,8 @@
 /.idea/jarRepositories.xml
 /.idea/gradle.xml 
 /.idea/compiler.xml 
-/.idea/vsc.xml
+/.idea/vcs.xml
+/.idea/caches/build_file_checksums.ser
 .DS_Store
 /build
 /captures