Merge pull request #6 from angarg12/master

Level files moved to resources
Minor changes to level GUI

Now the win and lose screens show buttons to go back to the main menu,
instead of exit the game.
Main screen GUI changed

I know it is just a placeholder, but I couldn't stand the empty space!
now buttons are close together.
Sprites and camera reworked

Now sprites should be pixel perfect when rendered, as the size of the
orthographic camera changes depending on the resolution.

Also all sprites have been reimported as 64x64 pixels.
Misc Unity changes
Revert "Misc Unity changes"

This reverts commit 7260996045796cf705ba24a95ad4b571c4907ecb.
Misc Unity changes
Sidekick GUI fixed

Sidekick GUI moved a little bit to the left to avoid it going out of the
screen border.
Dynamic resolution adaptation implemented

Now when loading a level the game checks the screen resolution, and
adapts the level elements accordingly. Therefore now the game should
adapt the play area to any screen resolution.
Misc Unity changes
Boundary objects fixed

The old "boundary" objects have been renamed as level area to avoid
ambiguity with the Boundary class.

Also direct references have been added as public variables to the
LevelController in order to make managing these objects easier.
Merge pull request #7 from angarg12/develop

Develop