XD-2025 Update config settings in spring-xd-yarn server.yml

- updating to match match current XD servers.yml

- moving ConnectionPoolSettings to own section

- adding a modules-config.zip as the module configuration option
Update README to 1.0 GA
XD-1799 - Fix ArrayIndexOutOfBoundsException in TwitterSearchChannelAdapter
XD-1799 fixed error message
Release version 1.0.0.RELEASE
Increment version to 1.0.1.BUILD-SNAPSHOT
modularize build.gradle
downgraded some dirt dependencies
Restore 'compile' dep to spring-xd-hadoop