[ActionManager] Ignore unused "_actorInfo" arguments of execCommandAction()

The arugument is used only by test code and it's always NULL in
the actual code. So it will cause crash on the actual environment!
Merge pull request #218 from project-hatohol/ignore-unused-actor-info

[ActionManager] Ignore unused "_actorInfo" arguments of execCommandAction()
[Client][HatoholAddActionDialog] Fix label name.

Host Group ->
Hostgroup
[Client][po] Update po file.

I forgot to translate "Hostgroup" and "Hostgroup Selection" in
djangojs.po file.
[Client][po] Fix timezone.
Merge pull request #219 from project-hatohol/translate-hostgroup

Translate word which I forgot
[Server][README] Add require package.
[Server][README] Break one line.
[Server][README] Update version name to Ubuntu 14.04
[Client][README] Update version name from Ubuntu 13.10 to Ubuntu 14.04.
[Client][README] Use sudo command when command is used at
administrator rights.

Because, in ubuntu, usually, use sudo command when command is used at
administrator rights.
[Client][TestUtils] Add test assertions to new function.
[Client][Utils] Add case for nagios.
Revert "[Server][README] Break one line."

This reverts commit 9d1867921ba9d445cfdc9bcc9eff6a18e292f85a.

Because, this commit has 2 problems.
- It makes copy-and-paste inconvenient
- All the words are still not shown in other environment.
[ZabbixAPI] Fix a typo in a comment
falgs ->
flags
[ZabbixAPI] Drop "value_flags" in trigger object against Zabbix 2.2

Because it's a deprecated value on Zabbix 2.2.
github issue #221
[ZabbixAPI] Modify the comment about value_flags of trigger object
[testArmZabbixAPI] Add tests for getting triggers against Zabbix-2.2.0 & 2.2.2
Merge pull request #223 from project-hatohol/zabbix-2.2.0

[Issue #221] Fix a bug that can't get triggers from Zabbix 2.2.0 - 2.2.1
Merge pull request #220 from project-hatohol/update-README

Update readme