SVN change log: issues command
SVN change log: issues section
SVN change log: code for loading the issues
SVN change log: correction section for the issues
JIRA: client interface
JIRA: delegates to the client the creation of the `JIRAIssue`.
JIRA: client skeleton
JIRA: client for an issue
JIRA: issue forbidden & issue not found cases
Client: creating the HTTP clients on demand
JIRA: parsing of dates
JIRA: TODOs in the client