Merge pull request #1 from membrane/master

Update from original
RoundRobinStrategy: avoiding possible IndexOutOfBounds, and performance optimization by getting Node list 1x instead of 3x.
Code beauty: replaced .size==0 with .isEmpty().
Hostname class initialization: assigning static class variable in constructor is evil. A later execution could interfere with (non-volatile) variable access. And is not necessary.
The class has 4/6 test failures (before and after). I don't fully understand the logic, therefore I won't touch the main code.
RoundRobinStrategy: shortened time of synchronization.
New feature : Spring Expression language as a part of router configuration.

see cli/examples/spel
    <router>
        <serviceProxy name="predic8.com" port="#{myProp.LISTEN_PORT}">
            <path isRegExp="#{myProp.PATH_RE}">.*</path>
            <target host="#{myProp.DEST_HOST}" port="#{myProp.DEST_PORT}" />
        </serviceProxy>
    </router>
Remove depended dependencies, upgrade jackson-mapper-asl to 1.9.11 as used by google-http-client-jackson
Merge pull request #168 from vlk32/clean-library

Remove depended dependencies, upgrade jackson-mapper-asl to 1.9.11
Merge pull request #166 from vlk32/spel

New feature : Spring Expression language as a part of router configuration
Merge branch 'fabiankessler-master'
Merge branch 'master' of https://github.com/membrane/service-proxy
Merge with membrane/service-proxy:master, upgrade slf4j to 1.7.9