plug jira adapter draft classes
trim some methods not needed because we are only implementing issue tracker interface
remove fork method
more changes
switch to issueClient
minor detail
minor simplification
fix readme.md
fix typo
further improvement and cleaning up trash
clean further according to behavior of client
not sure how to implement some parts but here it is
implemented methods:

 - openIssue
 - getIssue
 - updateIssue
 - getIssueUrl
Merge pull request #1 from AlexKovalevych/library-integration

implemented methods:
addressing comment by aaron
change according to stook comment
typehint array configuration for JiraEnterpriseFactory
plug a couple of docblocks
addressing more comments
addressing more comments from aaron