New checks and features

Check Request #29 - ComponentUpgrade ReadyForQA should only have JBEAP issue is the same state linked to it
Check Request #30 - Component Upgrade being modified after being set to ReadyForQE + refactor
Check Request #31 - A component upgrade issue is attached to the JBEAP issues associated to resolved issue with Fix Version
Check Request #32 - All issues on payload should have 3 acks
Check Request #33 - Only issues with QA ack can be worked on
Check Request #36 - Identify JBEAP issue with a PR not matching Target Release
Check Request #37 - Check if stream status match between blocked/incorporated issues and parent
Check Request #38 - Issue attached to payload but not assigned to anybody
Check Request #39 - Issue state is either MODIFIED or ASSIGNED after PR was closed
Check Request #40 - Issue in on the payload but is missing some acks
Bump down BZShouldHaveTimeEstimate to TRIVIAL
Rework StringReportEngine to ignore TRIVIAL violation
External Checks Loading
** Refactor RuleEngine into RulesEngine
** Add a test to ensure that external rule can be loaded
** Add --rules to pass checknames to Bugclerk

Code Clean and internals

Add constructor to allow building RuleEngine without an Aphrodite instance
Adding missing test to TestSuite
Rename getPullRequests to avoid ambiguity
Refactor mockBug into MockBzIssue for clarity purpose
Fix order of enums value in Severity
Refactoring code to build a small internal API about filtering issue based on event in their history. (Work in progress)
Refactor JiraChangelogHelpers - generify code and to allow reuse of methods isChangedAfterResolved with a different status
Code clean and refactor of RulesEngine
Misc code clean - init ArrayList to 0
Enhance how StringReportEngine format empty report
Ensure any Aphrodite based Exception is being catched and wrapped as IllegalState
Fix wrong nbViolation found output on sysout
Code clean: Refactor isReportToBz() to isReportViolation()
Bump drools to latest (community) BRMS release, plus switching Aphrodite to 0.7.2-SNAPSHOT
Refactor rule's helper method in separate class for cleaniness purpose