Deprecated the use of “packrat” as a package dependency system, in favour of “renv”. “checkpoint” was also deprecated because it only makes sense at a later time than initialization.

New start_here() function checking and helping system setup and config for an optimal package development experience, based on usethis setup article.

Renamed the package starters because a package called projects was released on CRAN.

Added name validation (@archetana, #38)