Added build script (Make.sh). Will later convert into a proper GNU makefile.

Signed-off-by: Ken 'Minalien' Murray <minalien@gmail.com>
Added Arial font, updated combat system to display unit health.

Signed-off-by: Ken 'Minalien' Murray <minalien@gmail.com>
Fixed #111

Signed-off-by: Ken 'Minalien' Murray <minalien@gmail.com>
Merge pull request #112 from Minalien/master

Added build script test, (temporary) unit health display & fixed #111.