Moved raylib webpage to docs folder

raylib webpage has been completely reorganized and moved from gh-pages
(a pain to work with) to docs folder. Useless libs have been removed,
webs have been renamed, etc.

Now it would be easier (hopefully) to update webpage. :)

docs/humans.txt

@@ -0,0 +1,14 @@
+# humanstxt.org/
+# The humans responsible & technology colophon
+
+# TEAM
+
+    RaySan -- Designer/Programmer -- @raysan5
+
+# THANKS
+
+    Elendow, Zopox
+
+# TECHNOLOGY COLOPHON
+
+    HTML5, CSS3, jQuery