Add .jar, .exe and .msi

These files are also regularly downloaded by PKGBUILD scripts and should not be included in the repository

ArchLinuxPackages.gitignore

@@ -1,5 +1,8 @@
 *.tar
 *.tar.*
+*.jar
+*.exe
+*.msi
 *.zip
 *.tgz
 *.log