bumped version to 0.9.167.pre1 and added change log
bumped run_loop to dependency to 0.1.3
fixes keyboard_enter_char 'Return'

https://github.com/calabash/calabash-ios/issues/309
updated change log with status of issue 309
Merge pull request #311 from jmoody/fix/0.9.x-return-key

fixes keyboard_enter_char 'Return' issue 291