Revert vendors caching for travis and fix for codecov
Revert vendors caching for travis and fix for codecov

Artiom-M/xpiks,Ribtoks/xpiks,Ribtoks/xpiks,Artiom-M/xpiks,Artiom-M/xpiks,Artiom-M/xpiks,Ribtoks/xpiks,Ribtoks/xpiks