Merge pull request #3 from matthiasblaesing/master

Bring redminenb to netbeans 8 compatibility
Missing delete from final commit of redminenb merge #3
Use redmine priority icons for "Tasks"-Window - icons are already used in internal issue list and priority selector
Implement time logging (first part: entering new times)
Display Spent-Time in issue info
Merge pull request #4 from matthiasblaesing/merge_3_fix

Missing delete from final commit of redminenb merge #3
Merge pull request #6 from matthiasblaesing/time_entries
Merge pull request #5 from matthiasblaesing/tasklist_priority_icons

Use redmine priority icons for "Tasks"-Window - icons are already used i...