Fix integration tests for Net HTTP Server.
net-http-server logs to $stderr!
net-http-server is not a dependency when RUBY_VERSION == 1.8.7 || RUBY_ENGINE =~ /jruby|rbx/
Merge pull request #671 from patriciomacadden/fix-integration-tests

Fix integration tests for Net HTTP Server.
changed fenced code blocks style to ensure proper parsing downstream at sinatra.github.com

chinese fixes
Merge pull request #674 from kgrz/master

Chinese, Korean, Russian Markdown fixes
Adds failing test for after filters
Fixes #673 and adds additional test for before filter
Merge pull request #678 from nesquena/fix_exception_handling_for_filters

Fix exception handling for filters
fix HEADER_VALUE_WITH_PARAMS regex and added a test case for this regex.
add support for mime types with dots, hyphens and plus signs.
Merge pull request #679 from patriciomacadden/provides

Fix HEADER_VALUE_WITH_PARAMS regex and added a test case for this regex.
Cleanup unused variables
Just some typos, here and there!
Merge pull request #681 from vipulnsward/cleanup_typos

Just some typos, here and there!
update changes
fix headings in German readme
add toc to german readme
fix headings in russian readme, I hope
Use |_| instead of vars; fix typo