+ Wrote ee_draw_triangle() and ee_draw_thin_triangle().
* libee/box.c:
+ Wrote ee_draw_box(), ee_draw_thin_box() and ee_fill_box().
* libee/conic.c:
+ Wrote ee_fill_ellipse().
+ First attempt at ee_draw_thin_ellipse(), to be reworked.
* test/demo.c:
+ Merged demo_lines() and demo_thin_lines().
+ Merged demo_triangles() and demo_outlined_triangles().
+ Wrote demo_box().
+ Use ee_fill_ellipse() in demo_all().
+ Moved ee_putstr() and ee_putchar() in here.
* libee/ee.h:
+ Got rid of ee_goto().
+ Moved <slang.h> or <curses.h> into libee.
* Replaced ee_goto()/ee_putstr() pairs with ee_putstr().
* Ditto for ee_putchar().
+ Moved ee_get_key() here.
* libee/math.c:
+ Moved r00t() here and renamed it to ee_sqrt().
+ Moved GET_RAND() here and renamed it to ee_rand().
* src/math.c:
+ Removed this deprecated file.