Merge branch 'hotfix/1.18.19' into stable
fix a memory leak introduced by falcon's sparse array patch
added forgotten updates of railsexpress patchsets
Merge pull request #1678 from skaes/falcon-sparse-array-memleak-fix

Please merge new railsexpress patchsets
1.18.20
Merge pull request #1678 from skaes/falcon-sparse-array-memleak-fix

Please merge new railsexpress patchsets
Merge branch 'hotfix/1.18.20'