change from blank? to empty? on obvious string values  to save extra method calls
Merge pull request #9784 from vipulnsward/change_from_blank_to_empty_on_string

Change from blank? to empty? on obvious string values  to save extra calls
Revert "Merge pull request #9784 from vipulnsward/change_from_blank_to_empty_on_string"

This reverts commit 9c4c05fc82e997b722dec4068c3aa27eaee69eb8, reversing
changes made to 4620bdcefd0c88905a005f191496df887877b8f3.

Reason: They're not completely interchangeable, since blank? will also
check for strings containing spaces.
Use @app_env_config instead of @env_config

Check pull request #9789 for more information.
Initialize @app_env_config now that the var name has changed

Check 862389c9537dbb6f65fd26c4325e07607ed437b5 for more background.
drop an unused hash; change slang to SPECIAL
Merge pull request #9792 from vipulnsward/drop_unused_hash

drop an unused hash; change slang to SPECIAL
Fix warning: mismatched indentatmmismatched indentations at 'end' with 'def'
Merge pull request #9800 from kennyj/fix_warning_20130319

Fix warning: mismatched indentatmmismatched indentations at 'end' with 'def'
Use ruby-oci8 master