EA-1 - Move beans from @Autowired to moduleApplicationContext.xml

This is based on the discussion on the dev list that using @Autowired for proxied components increases load time of a module. (Discussion link - https://groups.google.com/a/openmrs.org/forum/#!topic/dev/COOxqHBcwpM). 

This commit removes autowiring for all components introduced as part of EA-1. 
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