Adds ActiveCardsPanel tests. Removes unused imports and doClicks method from ActiveCardsPanel
Add the functionality to check if any components on the create game panel have changed. Show the pop up warning window only changes have been made.

Tianchang Gu, Tony Garside, Jordan Wetzel
Merge branch 'dev' of https://github.com/cs3733bdt/wpi-suite into dev

# By dcuzunoglu (3) and others
# Via dcuzunoglu
* 'dev' of https://github.com/cs3733bdt/wpi-suite:
  Adds ActiveCardsPanel tests. Removes unused imports and doClicks method from ActiveCardsPanel
  fixes the MainViewTest
  Changes error label for End Date verification
  Create game and Create Deck panels now automatically select their name field when opened.
  removes unused imports, unused variables and some other warnings from tests
  Modify invalid end date error message.
fixes the nullpointer in creategamepaneltest
Adds tests for Deck class. Fixes a minor issue in Deck class where the ArrayList variable's initial letter was a capital letter.
Merge branch 'dev' into PreferencesTab
Changed submit and clear buttons to have correct names and be formatted correctly. Jeffrey Signore
Merge branch 'dev' of github.com:cs3733bdt/wpi-suite into dev
Fix the requirement lists comparison. Fix end date null pointer.

Tianchang Gu, Tony Garside
Merge branch 'dev' of https://github.com/cs3733bdt/wpi-suite into dev

# By dcuzunoglu (2) and Jeffrey Signore (1)
# Via Jeffrey Signore
* 'dev' of https://github.com/cs3733bdt/wpi-suite:
  Changed submit and clear buttons to have correct names and be formatted correctly. Jeffrey Signore
  Adds tests for Deck class. Fixes a minor issue in Deck class where the ArrayList variable's initial letter was a capital letter.
  fixes the nullpointer in creategamepaneltest
Merge branch 'dev' into PreferencesTab