Major refactoring
Updating README for upgrade guide
Renaming DruidNodeConnection to DruidNodeDruidQueryExecutor
Making README versions match composer version tags I created
Merge branch 'develop' into php-53-compat

* develop:
  Making README versions match composer version tags I created
  Updating README for upgrade guide Renaming DruidNodeConnection to DruidNodeDruidQueryExecutor
  Major refactoring

Conflicts:
	src/DruidFamiliar/BasicDruidQuery.php