Bump version to 0.4.9.
Add parameter docs.
Use a block to cache parsed source files.
Reuse directory name.
Use subject rather than ivar.
Tweak comment.
Use struct to pair certificate with its private key.
Fix documented return type.
Extract save method.
Add trusted? tests.
Ignore duplicate certificates when building store.

Fixes #37.
Loosen gem dependencies.
Brevity.
Add parameter docs.
Revert "Vines crash on duplicate certificates"

This reverts commit fd3f7ceeb92dc10b9ac1afa01c489815fb775205.
Merge branch 'upstream' into revert_cert_crash_patch

Conflicts:
	lib/vines/version.rb
	vines.gemspec
Merge pull request #12 from Zauberstuhl/revert_cert_crash_patch

Revert cert crash patch and apply upstream changes
Updated Gemfile.lock
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