bugfixing private repository fetching

Merge pull request #374 from LoopPerfect/fix/fetch-private

adds git fallback in cacheOrApi to fix #373

v3.0.1: Merge pull request #365 from LoopPerfect/fix/ssh

Changelog:

• fixing ssh issue

v3.0.0

Update CONTRIBUTING.md

v3.0.0-rc1

Merge pull request #357 from LoopPerfect/feature/bazel

feature/bazel

bazel-alpha-4

 * Adds BUCKAROO_USE_BUCK env var

bazel-alpha-3

 * Fixes tests

bazel-alpha-2

 * Use unix-style paths for WORKSPACE files

bazel-alpha-1

 * Fixes tests

Baobab Resolver

New Features:

• Significantly improved resolution algorithm
  This release implements a novel Conflict Driven Clause Learning (CDCL) resolution algorithm.
  The CDCL algorithm computes unsatisfiable cores and prunes the searchspace.

• candidates are now prefetched

• --cache-first option added to skip git ls-remote where possible

v2.1.1 - Reduced Bundle Size

Merge pull request #327 from LoopPerfect/improvement/lean-bundle

 * Reduces the size of the final bundle