Revert "fixed non-existent database_info function in rails::configure"

This reverts commit ef35aae56b0b4e1845ca1b20261425822b421dad.
Revert "fixed broken check for database adapter in rails/libraries/rails_configuration.rb"

This reverts commit 2d5afb4d37319dd8c19413decc05f32290a9bf1a.
Revert "added attribute to deploy cookbook to set a default for"

This reverts commit 81dfc793869c75508198ae895c47f5984955272b.
Revert "changed rails cookbook to map adapter=mysql to adapter=mysql2 if using"

This reverts commit d2c78361372ee3c2f0b6f0fce2961c766cd819ab.
Revert "changed rails adapter function to return mysql2 instead of mysql if an"

This reverts commit 46123a88f607bf7555e2078ea7624c3c254cb1c1.
Revert "Reverted mistakenly added RDS changes which were not tested enough before"

This reverts commit 47c5148bd9288a4560d5030ead7750322fcf528b.
Revert "added missing code to pass the java driver class to the webapp_context"

This reverts commit fdbc1ccaad010c736e7e2ac3eade01afa045e496.
Revert "added missing dependency on deploy cookbook to php and opsworks_java"

This reverts commit d16cd1c16dca295c180c496e08c94b48f681b3d1.
Revert "changed default port on app/database info to be set by the deploy"

This reverts commit 14d8a36fcccc18d6b6018c728618bc16ad333631.
Revert "changed the php, rails and java cookbooks to use an attribute instead of"

This reverts commit 6707dc89c2a2d631434d9d4e52b7bac9f8994b83.
Revert "Changes to rails, PHP and Java to support RDS. Currently only rails"

This reverts commit 77fd1c7eb51e9859ea5ec97209739de0b516bd57.