Fourth CRAN release

Adds test_index(), better doc and small fixes

Third CRAN Release

Small bugfixes and improvement, notable removed deprecated and superfluous function lest_this()

Second CRAN Release

Maintenance release to comply with new CRAN guidelines concerning vignettes. Some small improvements to the behaviour of test_this, test_subdir, etc...

First CRAN release

v1.0.2

Cleaned up tests and added missing testthis tags and ignores for expo…