Fix Pool Spots Bugs

[MehalP]

• [x] Date should be shown in dd mm yy format
• [x] Add delete and edit buttons beside the pools
• [x] User shouldn't be able to sign up on their own pool
• [x] Redirect the user to pool spots page after logging in
• [x] Make sure that Edit button works

[AyushMukherjee]

3 Requires #28

[AyushMukherjee]

@MehalP, how should people edit their entries. Should they be redirected back to the form with values filled in?