Add 2014/vik/try.sh, update bugs.md, fix clobber

The bugs.md has more details on the bug I discovered when working on
2020/ferguson2. Even the usage in the try section (now in try.sh)
resulted in files that cannot be translated to English right.

The make clobber rule now removes *.raw instead of specific raw files.
This is important for clean up prior to updating the manifest.

Updated .gitignore.

2014/vik/.gitignore

@@ -8,4 +8,4 @@ indent.o
 prog
 prog.alt
 prog.orig
-prog.raw
+*.raw