Add possibility to serve static resources like html, css or js.
Upgrade to servlet 3.0 and jetty 8

This patch upgrades spark to Servlet 3.0 and (latest) Jetty 8.

Issue: 43
add a HTTP301 (permanent) redirection to response api
add some log and a slf4j logger
add secured cookie creation method
Upgrade to servlet 3.0, jetty 9, and java 7

This patch upgrades spark to Servlet 3.0 and Jetty 9, and Java 7.

Issue: 43
Removed inherited from maven plugins

Inherited is true by default, so no point in setting it explicitly.

Issue: 43
Removed log4j from comment in pom

Removed log4j from comment since it's not being used as dependency.

Issue: 43
Added jetty dependencies section comment in pom

For consistency and readability, jetty dependencies section is marked
with a comment.

Issue: 43
merge SSL pull request and updated to use Jetty 9.0
moved test keystore
removed unused import
merged static resources pull request
sonar fixes
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/main/java/spark/Response.java
adding securedCookie method
redirect http 3XX method
some logs
last version for slf4j (to be able to use varargs)
Replaced calls to HttpServletRequest.getScheme(),HttpServletRequest.host() and HttpServletRequest.getPathInfo() with a call to HttpServletRequest.getServletURL()
Calls to HttpServletRequest.getPathInfo() return null if extra path information is unavailable causing malformed URLs to be returned.
increased version
Merge commit '0be718b3b73c74e05f6c27813ed476e6133df6c4'