CLOUDSTACK-7903: Decreased minimal usage aggregation range value

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 9b907902d2d424bc8b3136d97196457f42738fff)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Conflicts:
	server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
CLOUDSTACK-7903: Fix build regression from previous fix

The previous fix tried to access StatsCollector from UsageManagerImpl
which is not possible due to dependency cycle.

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 1e0880cbabfb2c8edbd6a5a35b9417b2f3e6f681)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

Conflicts:
	server/src/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java
README: add information about official git repository

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 45423c737e091eca89c93f4279862a07020b1f10)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
CLOUDSTACK-7404: Failed to start an instance when originating template has been deleted

Signed-off-by: Sebastien Goasguen <runseb@gmail.com>
(cherry picked from commit c1bf7eeeeeb3bd4dad384225d411e21859cce470)
Remove error message when start management server if JAVA_HOME is not set
(cherry picked from commit 449d123ce73393d79467314446fb50cc06f957d7)
CLOUDSTACK-7994: Network rules are not configured in VR after out-of-band movement due to host crash
Ensure that VR is re-booted when it is moved to another host out-of-band. This is necessary to re-program all network rules