Code change needed to support newest Guava.

[Trevor Marsh]

As of Guava 22, The class HostAndPort no longer has a method named "getHostText" it is merely "getHost".  The getHost method does exist however in 20.0 (which I see is what your pom uses).  When the newest Guava jar is on the classpath, this class: https://github.com/adamfisk/LittleProxy/blob/master/src/main/java/org/littleshoot/proxy/impl/ProxyToServerConnection.java (and possibly more) fail on line 961.

[Stephan Schmid]

Thanks Trevor, I experienced also a java.lang.NoSuchMethodError by using Guava 22. 

As a workaround, one could use reflection to check which method to use.

This should be fixed definitely!