Fixed Queries in datastoreinterface + amount.jsp delete

in all queries for project-searches (like for most funded,
mostpopular...etc) the projects that werent funded yet werent displayed
due to a join with the selectamount table
-> fixed with a LEFT JOIN of project and selectamount
&&
amount.jsp is NOT necessary for the view of the project (to stay on the
same projectpage) the id in the amount.java class is sufficent !
Merge branch 'master' of https://github.com/worxli/db_pro1