init controller for Issue actions
show,update and datele issue on board
edit funciton comment
continue working ..
add comment to issue
fix errordo not show detail
function add comment
add file
fix error confirm when delete issue and comment
add function close show detail and edit screen show detail
Fix bugs in Redmine 2.4
Merge pull request #76 from scrum2b/issue_tools

Issue tools for get more functions: show/edit detail of issues, attached files, comments