Improve CRL support with pem->crl and crl->pem!
Add pem->cert and cert->pem! for API consistency and pleasantry
Move issued-by? and has-subject? out of API and into tests
Document thrown exception
Merge pull request #22 from nwolfe/more-conversion-functions

More conversion functions
Update CHANGELOG for 0.2.0 release
lein-release plugin: preparing 0.2.0 release
lein-release plugin: bumped version from 0.2.0 to 0.2.1-SNAPSHOT for next development cycle
Add pem->public-key function
Merge pull request #23 from nwolfe/public-key-support

Add pem->public-key function
Update CHANGELOG for 0.2.1 release
lein-release plugin: bumped version from 0.2.1 to 0.2.2-SNAPSHOT for next development cycle