[Event view] Create links to the nagios dashboard and the nagios status page.
 [UnitTest][event view] Create unit test for case of nagios
[Event view] Create function that test pattern of each middleware.
[Event view] Change the place of functions and rename testPatternOfEachMiddleware() to testTableContets().
Merge pull request #766 from project-hatohol/issue80-3

Create links to the nagios dashboard and the nagios status page