Merge changes I2695c6df,I51828250,I9d97c84e,I93589a40,Id5a9b5c7

* changes:
  Add support for Oracle database
  Support installation of proprietary libraries in $site/lib
  ScriptRunner: strip SQL delimiter if SqlDialect doesn't support it
  Migrate schema to meet 30 char length of database id limitation
  Fix preUpdateSchema to support multiple version steps