Changed constructor type PreparedStatement

Updated:
-All PreparedStatement
Github is strange...

Sometimes it doesn’t want i commit everything!
Merge branch 'master' of https://github.com/vdemot

Conflicts:
	src/ch/ethz/inf/dbproject/sqlRevisited/AbstractPreparedStatement.java
	src/ch/ethz/inf/dbproject/sqlRevisited/Connection.java
	src/ch/ethz/inf/dbproject/sqlRevisited/Database.java
	src/ch/ethz/inf/dbproject/sqlRevisited/DeletePreparedStatement.java
	src/ch/ethz/inf/dbproject/sqlRevisited/InsertPreparedStatement.java
	src/ch/ethz/inf/dbproject/sqlRevisited/SelectPreparedStatement.java
	src/ch/ethz/inf/dbproject/sqlRevisited/UpdatePreparedStatement.java
Merge branch 'master' of https://github.com/vdemotz/IntroDBProject
Bug fix