[HapProcessCeilometer] Parse a host (VM) used in the alarm (trigger).
[Reaper] Add a new method: get().
[HapProcess] Send host (VM) information to Hatohol server.
[HapProcessCeilometer] Add a TODO comment.
[HapProcessCeilometer] Clean up.
[HapProcessCeilometer] Clean up.
[HatoholArmPluginGate] Register a host: "N/A" at the start.

This is for a trigger that is not tied to one hosts.
For example, OpenStack's ceilometer can create a such kind of
triggers (alarms).
[HapProcessStandard][HapProcessCeilometer] Return the error code of acquireData().
[HapProcessCeilometer] Extend sendGetRequest() so that it can take care of other requests other than GET.
[HapProcessCeilometer] Clean up by removing duplicated code.
[HapProcessCeilometer] Reset information about keystone on errors.
[HatoholError] Remove erros that are not being used.
[HapProcessCeilometer] Authenticate again before the token is expired.
Merge pull request #557 from project-hatohol/hatohol-arm-plugin-ceilometer-c++-8

Hatohol arm plugin ceilometer c++ 8