Preparing StockRefreshService to be implemented.

Signed-off-by: Leonam Anjos <leonam.ricardo@gmail.com>
Merge branch 'master' of
https://github.com/lgsanjos/RendimentosFinanceirosApp.git

Conflicts:
	app/src/br/com/itibansistemas/rendimentos/db/Entity.java
	app/src/br/com/itibansistemas/rendimentos/stock/Stock.java
	app/src/br/com/itibansistemas/rendimentos/stock/StockRepository.java
	app/src/br/com/itibansistemas/rendimentos/stock/service/StockRefreshService.java
	appTest/src/br/com/itibansistemas/rendimentos/stock/StockRepositoryTest.java