small fixes 1.7.4

git-svn-id: https://plugins.svn.wordpress.org/better-anchor-links/trunk@1018593 b8457f37-d9ea-0310-8a92-e5e31aec5664
link fix

git-svn-id: https://plugins.svn.wordpress.org/better-anchor-links/trunk@1018595 b8457f37-d9ea-0310-8a92-e5e31aec5664
version bump 1.7.4

git-svn-id: https://plugins.svn.wordpress.org/better-anchor-links/trunk@1018597 b8457f37-d9ea-0310-8a92-e5e31aec5664