finish tag table refactor
rename getTags() function name
fix all test cases for Tag
remove unused system print messages
remove IIssueTag relate constructor
modify get new record id way
Merge pull request #27 from ezScrum/story_7106

Story 7106
[完成] MantisSerialNumber的CRUD & UI
[修改] Task CRUD (未完成)
fix error in project
modify addTask method

Conflicts:
	java/ntut/csie/ezScrum/issue/sql/service/internal/MantisService.java
Merge branch 'story_7103' of github.com:ezScrum/ezScrum into story_7103

Conflicts:
	java/ntut/csie/ezScrum/issue/sql/service/internal/MantisService.java