Update parent pom
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2.2.0
[maven-release-plugin] prepare release jackson-module-afterburner-2.2.0
[maven-release-plugin] prepare for next development iteration
Merge pull request #18 from stevenschlansker/nonvoid-setters

Fix bytecode generation for non-void setters, take 2
update release notes, credits
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add a unit test to verify that AFterburner will not have issues reading trees
What is optimized? section corrected
update readme
Merge pull request #19 from bonifaido/master

What is optimized? section corrected in README
Fix #21
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[maven-release-plugin] prepare release jackson-module-afterburner-2.2.1
[maven-release-plugin] prepare for next development iteration
Test that we do something reasonable on IllegalAccessError
Protect OptimizedBeanPropertyWriter against IllegalAccessException and SecurityException
Protect BeanPropertyMutator against IllegalAccessError and SecurityError
Improve error messaging when an error is tripped