UNDERTOW-275 Support Follow Symlinks
UNDERTOW-302 Don't set the content type in the default servlet if it has already been set
Match behavior of PathTemplateHandler to the one of PathHandler
Don't set a response content type if it has already been set
Merge pull request #243 from lfrancke/path-template-handler

Match behavior of PathTemplateHandler to the one of PathHandler
Merge pull request #241 from lucasponce/UNDERTOW-275-master

UNDERTOW-275 Support Follow Symlinks
UNDERTOW-300 Fix IndexOutOfBoundsException in ServletPrintWriter
UNDERTOW-301 Escape the text in the error page by default
Allow timeouts to be set dynamically.
Initial HTTP upgrade based implementation of HTTP2
Fix incorrect check
Fix @HttpOnly
Merge pull request #247 from lfrancke/path-template-handler

Fix incorrect check from PR #243
Update connection logic to append to the X-Forwarded-For header if it is present
Fixed style check issue
Fixed join issue when building the X-Forwarded-For value
Added the parameter `reuseXForwarded` to the `ProxyHandler` class. This allows any existing X-Forwarded-For header to be appended to. It is turned off by default thus the X-Forwarded-For header is overwritten unless it is desired not to. Also, remove the X-Forward* logic from HttpClientConnection and SpdyClientConnection.
Removed unused imports to pass CheckStyle
Fix issue with test case
Don't run tests on Windows