Add url_encode standard filter
Add url_encode filter to history
Merge pull request #421 from djreimer/url-encode-filter

Add url_encode standard filter
Fixed condition constains operator with wrong data type

"contains" operator on wrong data type should not cause NoMethodError.
Merge pull request #423 from bogdan/contains-with-integer

Fixed condition constains operator with wrong data type
Pass options to include tags
Merge pull request #425 from Shopify/pass-options-include

Pass options through on include
Optional line numbers for liquid errors
Remove parser switching duplication
Add line numbers to warnings
put line number in parentheses
Clean up Liquid::Error#render
remove unnecessary method
prefix for Liquid::Error instances
remove unnecessary nil
move line number check
merge conflicts