Added tox
Merge remote-tracking branch 'rohe/master'
Adapted Travis config to use tox
Added MPFR install to travis config
Ignored IDEA project folder
Added more dependencies to Travis config
Finally added also the built libs
Corrected libmpc's package name... hope to have gotten the correct one
Corrected libmpc's package name to match the TravisCI build machine
Apparently no need for gmpy2 (or gmpy), which was anyways causing dependency problems
Ensured py.test version to be current
Fixed cryptlib import
Fixed travis and tox config for py.test dependency
Re-added pytest dependencies
Reverted to initial standard test solution
Cleaned up testing configs
Extended gitignore
Merge remote-tracking branch 'origin/master'

Conflicts:
	.gitignore
Merge remote-tracking branch 'rohe/master'

Conflicts:
	.gitignore
	.travis.yml
Corrected travis config