[server][UnifiedDataStore] Return DataStorePtr to avoid developers from being confused.
[server][UnifiedDataStore] Add a new method: getServerConnStatusVector().
[server][ArmStatus] Rename a member to match with the similar members.

numUpdated ->
numUpdate

The similar member is 'numFailure', which consists of 'num and
a noun 'Failure'. This patch also renames it  with a naun.
[server][UnifiedDataStore] Add an option to control the initial running state of DataStore.
[server][testUnifiedDataStore] Make a test simple with the servers setup by default.
[server][FaceRest] Add a new API: '/server-conn-stat' that provides information of the status about servers.
[server][testFaceRest] Fix a bug that calls starObject twice.
[server][testFaceRest] Check the return value of startObject().
[hatohol-voyager] Add a command: 'server-conn-stat'.
Merge branch 'issue137'
Update hatohol13.12-centos6.4-ja.md

1.Add some comments.
Viewing hatohol
 + Login info
 + Enable Browser info

2.modified link.
[English](hatohol13.12-centos6.4.md)
Create hatohol13.12-centos6.4.md (English)
[Update] page link to hatohol13.12-centos6.4.md
[Update] supported software and page link

Add supported software "Nagios3 (with NDOUtils)".
Add link to "../doc/install/hatohol13.12-centos6.4.md".
[Create] hatohol13.12-from0.1-centos6.4.md
[Fixed] viewer URL
[Doc] Fixed the /var/log/messages.(server: ver)
[Doc] Added browsers info.
update page links of Installation and upgrade.
Merge pull request #157 from pandorabe/modification

Modification of README.md files.