Avoid unnecessary catching of Exception instead of StandardError (converting Exceptions into StandardErrors)

This worked in Rails 3.2, but was a regression in 4.0.0.beta1

* core_ext/object/blank
* concern
* core_ext/class/attribute
* deprecation

It's sometimes hard to quickly find where deprecated call was performed, especially in case of migrating between Rails versions. So this is an attempt to improve the call stack part of the warning message by providing caller explicitly.

AV::Template::Types is a small abstraction to allow to specify template types
that can be used in ActionView. When Action Pack is loaded it's replaced with
Mime::Type.

Action View should not be responsible for translating mime types. Any
translation that's needed should be handled at controller level.

This addresses an issue where in multi-threaded environments
multiple threads can attempt to compile a template at the same time,
which occasionally causes particular templates to end up in a bad
state.

So, add synchronization such that only a single thread can attempt to
compile a template at one time.

Template concurrency fixes
Conflicts:

	actionpack/lib/action_view/template.rb

Closes #5025 part 2

Closes #5025

They existed since initial rails commit by DHH but lost use a long time
ago

Switch from marshal format to plain text for the encoding conversions dump. This is for windows compatibility. Fixes #3644.

The bug is that an error would be raised while attempting to convert a
template from one encoding to another.

Please see http://redmine.ruby-lang.org/issues/5564 for more details.

The workaround is to load all conversions into memory ahead of time,
and will only happen if the ruby version is *exactly* 1.9.3p0. The
hope is obviously that the underlying problem will be resolved in
the next patchlevel release of 1.9.3.

This reverts commit 115e80dc.

This will make sure `render :inline` is working.

Closes #1633

Yo dawg, I heard you like streaming. So I put a fiber, inside a block, inside a body, so you can stream.