Fix legacy schema support syntax
Merge pull request #507 from yahonda/update_legacy_support_doc

Fix legacy schema support syntax
Remove warning message when JDK 8 is used
since Oracle JDBC Driver 12.1.0 supports JDK 8
Merge pull request #525 from yahonda/jdk8_supported_with_oracle12c_ojdbc7_jar

Remove warning message when JDK 8 is used
Merge remote branch 'upstream/master' into rails42