Use Python 3.5 in Boost-python example
Use Python 3.5 in Boost-python example

For Travis CI:
* https://travis-ci.org/ingenue/hunter/builds/469721022#L671
* https://travis-ci.org/ingenue/hunter/builds/469721022#L1111

ikliashchou/hunter,mchiasson/hunter,madmongo1/hunter,ingenue/hunter,ruslo/hunter,ingenue/hunter,mchiasson/hunter,tatraian/hunter,NeroBurner/hunter,ikliashchou/hunter,xsacha/hunter,xsacha/hunter,dan-42/hunter,ruslo/hunter,madmongo1/hunter,madmongo1/hunter,ruslo/hunter,tatraian/hunter,dan-42/hunter,ikliashchou/hunter,xsacha/hunter,mchiasson/hunter,ingenue/hunter,ErniBrown/hunter,ErniBrown/hunter,ErniBrown/hunter,madmongo1/hunter,pretyman/hunter,ErniBrown/hunter,ingenue/hunter,dan-42/hunter,NeroBurner/hunter,pretyman/hunter,dan-42/hunter,NeroBurner/hunter,pretyman/hunter,ikliashchou/hunter,ruslo/hunter,tatraian/hunter,NeroBurner/hunter,pretyman/hunter,xsacha/hunter,mchiasson/hunter