Changelog for packcheck-0.3.1

0.3.1

Add a new environment var option DISABLE_DIST_CHECKS to disable source distribution checks. This can be used as a workaround for a bug in stack causing "stack sdist" to fail.
For stack builds, use the same options (STACK_BUILD_OPTIONS) for install test as for build so that an extra rebuild does not occur during install.
Workaround to avoid depending on cabal info command; in certain cases this command crashes cabal. See issue #13.

Add cabal new-build support. Use packcheck.sh cabal-new to use it.
Add knobs to disable tests or doc builds (DISABLE_TEST, DISABLE_DOCS)
Now you can specify multiple versions of GHC in PATH and packcheck automatically finds the right one based on GHCVER envvar.
Add TOOLS_DIR option to specify hvr-ghc style installation of ghc and cabal. A correct version of GHC is automatically picked from this directory.
GHCVER and CABALVER variables are now optional in travis config if you specify the cabal and ghc PPAs under apt sources.
Run autoreconf if there is a configure.ac in the package dir

Make STACK_BUILD_OPTIONS and CABAL_CONFIGURE_OPTIONS append to the existing build/configure options instead of overriding them.
Do not enforce specific stack version in CI configs - this is done to avoid failures due to github API limits when upgrading or downgrading.

Avoid build failures in cases when cabal-install has to be installed and its dependencies may conflict with the current project dependencies.

Enhancement: Nix support; fix bash location to make it work on NixOS and potentially on other systems.