fix(http): Allow setting your own cookie parser secret

By doing: `ss.session.options.secret = 'foo'`.
fix for issue 449
Merge pull request #450 from kulicuu/master

fix for issue 449
fix: Adding travis support back in
Merge pull request #440 from mmalecki/cookie-secret

fix(http): Allow setting your own cookie parser secret
Use svg instead of png to get better image quality
Merge pull request #452 from PeterDaveHello/patch-1

Use svg instead of png to get better image quality
Added issue stats badges
fix(travis): Dropping support for 0.8
Merge branch 'master' of github.com:socketstream/socketstream
fix(tests): Better test running
fix(workflow): Replacing grunt tasks with node modules
fix(test): Updated should and made changes to testing setup
fix(tests): Added coveralls to check the code coverage stats
fix(tests): Istanbul was injecting listeners that failed a test
docs(docs): Added Coveralls badge
fix(docs): Corrected spelling and updated docs
fix(docs): Added tweaks and styling
chore(devDependencies): Updated grunt dependencies
chore(dependencies): Updated commander dependency