Merge OracleDAO from Clement L
load oracle driver once, getUniqueId while already connected
merge findByOwer and findByOwed, instanciate statements
Merge branch 'master' of github.com:budgetmate/budgetmate into OracleDAO

Also fix everything not working after the merge ;)

Conflicts:
	BudgetMate/build.gradle
	BudgetMate/src/main/java/ie/ittralee/budgetmate/LoginActivity.java
	BudgetMate/src/main/java/ie/ittralee/budgetmate/controller/Controller.java
	BudgetMate/src/main/java/ie/ittralee/budgetmate/dao/MemberTestDAO.java
implement friend view without payments
Merge branch 'OracleDAO'

Conflicts:
	BudgetMate/src/main/java/ie/ittralee/budgetmate/controller/Controller.java
	BudgetMate/src/main/java/ie/ittralee/budgetmate/dao/ExpenseTestDAO.java
	BudgetMate/src/main/java/ie/ittralee/budgetmate/dao/OweTestDAO.java