move rendering functions to separate module and complete missing bindings (wip)
implementing new bindings (WIP)
expose render module in main SDL module
fix a typo in binding
minor style change
fix some bugs, improve error handling, remove comments
organize imports
fix some examples for new API
add more bindings
implement more bindings
some parts left as TODO
remove implemented bindings from TODO file
Merge pull request #23 from osa1/master

added lots of new bindings, moved rendering functions to it's own module, fixed some bugs, cleaned code a bit