add map objective for seize button
clear out unnecessary code
modify the spawn button check
linked new map objective via script to main.js
modified seize button
Merge pull request #57 from mk200789/master

Made map objective for seize button
Fine-positioned critical battle animations for paladin, sniper, swordmaster, and warrior.
Updated records and task tree.
Fixed JSLint errors, first pass (added missing semicolons, removed extra commas, minor indentation readjustments, excess new lines and trailing space removals).
Hooked up game over screen background.
Merge branch 'master' of http://github.com/chessmasterhong/WaterEmblem
Fixed JSLint errors, second pass.
Added screen fade effect to game over screen.
Added music fade effect on game over screen.
Updated records.
Merged seize tile objective with other objectives. Cleaned up repeated code.
Fixed JSLint errors, third pass. Refactored code (variables).
Fixed JSLint errors, fourth pass (scope and undefined entities errors).
Moving majority of players into extra_players directory
Moving extra enemies into extra_enemies folder