COOK-3360: update for application 3.0.0 cookbook
release v2.0.0
increment version for development
Merge branch 'COOK-3360'
[COOK-3563] Replace calls to Chef::Mixin::RecipeDefinitionDSLCore

Signed-off-by: Seth Vargo <sethvargo@gmail.com>
Update CHANGELOG
Updated README format
Use new CONTRIBUTING.md
Update Copyright in README
Version bump to v3.0.0
Version bump to v3.0.1
do not write app.xml if no context file specified
move link context to def and only call if resource is present for context
add resource for context file
Merge branch 'gap_deploy_nil_context' of github.com:gapinc/application_java into gap_deploy_nil_context

Conflicts:
	resources/tomcat.rb