Revert "tinyfix travis-ci configuration file"

This reverts commit 50a421a4714d9f5667aa48b212e5d29d4b234833.
Revert "Revert "tinyfix travis-ci configuration file""

This reverts commit 3ef305b4764ea64cc47bf114d6640d0d968c118f.
Revert "tiny change dependent package splinter, install splinter through pip"

This reverts commit 9910a2f6a00719b28e40f6fa6cbdfa03241c6458.