Add index method to FormBuilder. Useful when you use field_for and need to know the index number into the iteration.

removed unnecessary block when using fetch

prevent the cache sweeper ignores NoMethodError

Dependency fix for activesupport

Optimistic locking: lock_version needed type information.

Updated/changed unneeded tr/gsubs

logger.silence is deprecated

No need to extend ActiveSupport::Extend here

Conflicts:
	guides/source/engines.textile

This reverts commit 0a35acb8.

Reason: Let's cross the bridge when we reach there.

correction to server stop statement added

minor elsif/else typo fix

https://github.com/lifo/docrails/commit/bb23d6fb005edaf25f5b294f9215429fb44b3f3d

Fix typo in "dasherize" description

Unnecessary uniqueness & force mapping has been removed at BacktraceClea...

add type option to atom feed entry builder

This reverts commit c46374a9.

Reason: Changed engines guide not to use a css tag. <plain> will do
just fine.