Make strip_html strip tags spread across lines
fix example servlet
Make strip_html filter strip contents of style tags
Added tests to verify that {{ 'now' | date :'%Y' }} and {{ 'today' | date :'%Y' }} work.

In the case of Ruby 1.9.3, 'now' is no longer parsed.  For safe
measures, I've added 'today' as well.
Merge branch 'master' of git://github.com/Shopify/liquid

* 'master' of git://github.com/Shopify/liquid:
  * Seperated 'Howto' into 'How to'. * Added periods to the second list as the first item has them. I guess I'm anally retentive like that. :)
  Fix conditions using negative number comparisons
Avoid warning for grouped expression
Avoid warnings for shadowed outer local variable
Avoid warnings for assigned but unused variable
Fix assignment with no effect outside of iterator
Remove trailing whitespace
Fix filter parser regex for filter args without separating spaces.

The regex was using \S+ to match the comma between the filters
arguments, but would continue to match idependent quote characters and
filter separators. This can result in multiple filters being interpreted as
a single one with many arguments.
Merge pull request #161 from Shopify/fix-filter-parser-regex

Fix filter parser regex for filter args without separating spaces.
Liquid has UTF8 support.
Add security tests to show that the symbol table doesn't grow
Remove #to_sym calls from Drop and Variable

Symbols are not needed here and using plain strings is nicer on Ruby
Change Drop method lookup to not hit respond_to?

Class.public_method_defined? ends up diving into Ruby's core looking for
a method with the given method_or_key. This process at some point turns
method_or_key into a Symbol. This change no longer takes that path and
thus doesn't grow the Symbol table.
Convert Strainer to white-list method protection

After moving the method existence check from Context into Strainer,
updated Strainer to only accept invokation methods that were added via
filter Modules, and done in a way that respond_to? is never called,
preventing unconstrained Symbol table growth.
Use sets to check if methods are invokable without symbolizing.
fix `can't convert Fixnum into String`
add tests for replace filter