spin for screenshot so file i/o doesn't cause errors.
this should be abstracted for other use cases!
Merge pull request #7 from santiycr/master

Added support for getting element's location
oops, this doesn't need 'only'
implemented above
Test for driver.source
move assertion inside driver.quit()
Merge pull request #8 from brainsik/master

test driver.source
adding 'prerequisites' to readme

adding info about security dialog too
adding authorize.py from hugs/appium
be able to specify absolute path to app to pass in.
make the python command block 'pretty'
Merge pull request #9 from lukeis/master

two things: adding info to README + authorize.py & allowing to specify an arbitrary app
add should to deps
spawn mocha as a subprocess to enable single-command test running
moving location test to new location API + moving assertions inside driver.quit callback
adding support for getting element's size