Merge branch 'master' into master

Author: pengpengliu

.travis.yml

@@ -1,7 +1,7 @@
 os: linux
 language: generic
-sudo: false
 script:
+    - scripts/link-format-chk.sh
     - scripts/buildtable.pl >/tmp/table.mediawiki || exit 1
     - diff README.mediawiki /tmp/table.mediawiki | grep '^[<>] |' >/tmp/after.diff || true
     - if git checkout HEAD^ && scripts/buildtable.pl >/tmp/table.mediawiki 2>/dev/null; then diff README.mediawiki /tmp/table.mediawiki | grep '^[<>] |' >/tmp/before.diff || true; newdiff=$(diff -s /tmp/before.diff /tmp/after.diff -u | grep '^+'); if [ -n "$newdiff" ]; then echo "$newdiff"; exit 1; fi; else echo 'Cannot build previous commit table for comparison'; fi