Handle charsets that are quoted as if they were not (trim them). I encountered some sites that have charset="utf-8" instead of charset=utf-8 and can not access their content. All browsers however accept the charset.

Testcases: 
1.) parseCharset("\"utf-8\"") == "utf-8"
2.) parseCharset("'utf-8'")   == "utf-8"
Merge pull request #90 from gerdriesselmann/patch-1

Handle charsets that are quoted as if they were not (trim them).
Fix build
Update README.md
Fix for #81 Upgrade to Netty 3.4.1.Final
Merge branch 'master' of github.com:sonatype/async-http-client
Fix for #91 [websocket] Add support a new Close Listener with code & reason
Add a test for #91
make the test more robust
Fix the Grizzly side of #91. - re-worked tests a bit.
Fix license.
More fix for #91 Make sure the close survives an error, make sure the close() is getting invoked
Improved error handling.
Make JDK 5 happy
[maven-release-plugin] prepare release async-http-client-1.7.4
[maven-release-plugin] prepare for next development iteration
Bump version, add WebSocket how to
Bump version, add WebSocket how to
For thread safety, define gssContext, token, negotiationOid as local variables instead of class attributes. (gssContext must not be thread safe as it makes NPE under load)
Merge pull request #95 from fabienbancharel/master

SpnegoEngine modifications for thread safety