Added checkbox to ignore ssl certificate validation
Created HttpClientFactory interface with implementation and test case
Changed JenkinsWebhook to use HttpClientFactory and added test case
Plugin-info.version now uses version from the pom
Bumped version to 1.1-SNAPSHOT.
Cleaned up imports
Added org.apache.httpcomponents.httpclient dependency
Using theirs to resolve conflict
Committing changes to JenkinsWebhook