Modify sysctl-set-value script to support multi-value parameters

Some kernel parameters require multiple values, such as
net.ipv4.ip_local_port_range 1024 65000
This change allows users to set these valuse with:
sysctl-set-value net.ipv4.ip_local_port_range "1024 65000" "Comment"

Change-Id: Id45df07ab4f2b55cd39f7db9f4b0b60cfea47124
Increased protection to prevent vip

add the timeout,rise,fall in  chk_haproxy of /etc/keepalived/keepalived.conf
timeout : 'seconds before script timeout'.
rise    : 'required number of successes for OK switch'
fall    : 'required number of failures for OK switch'

Change-Id: I721e60852318f9644cfb53f308d8eccd6fecdf85
Closes-Bug: #1393298
Add a delorean-repo element

This element allows developers to use Yum repositories
generated via the Delorean tool. This is very useful
for testing upstream packages with TripleO element changes.

Change-Id: I290f1adc9631c1350b0cb7ad52b27b6759de05d8
Merge "Add a delorean-repo element"
Merge "Modify sysctl-set-value script to support multi-value parameters"
Merge "Increased protection to prevent vip"