Optimizations for better flow setup rate.
    - avoid instanstiation of routekey for LPM find.
    - for entry create take last modified time from setup time instead of
      UTCtimestamp
    - avoid exporting flow stats as part of flow create, those will be sent
      in the next cycle of flowstatscollector.
Start syslog listeners only if configured and not by default
Taking care of review comment.
Change arguments to find and get functions of patricia to be constants.
moving GetUcRoute to flow_table.cc
As per review comments.
Merge remote-tracking branch 'upstream/master'
using API GetInet4UnicastRouteTable as per review comment.
Instance provisioning test
Merge pull request #217 from Juniper/meghb_github

Start syslog listeners only if configured and not by default
Protect read and write of generator statistics using mutex
Rename mutex_ to smutex_ since it is used for statistics
Merge pull request #221 from Juniper/meghb_vizd

Protect read and write of generator statistics using mutex
Merge branch 'master' of github.com:Juniper/contrail-controller
Update fabric script
Rename instance config test
Remove SyslogPort from contrail_ports.h
Patch in:
commit 6f425af08f02ed6c6bf676c25864ed0f0d3554ad
Author: Megh Bhatt <meghb@juniper.net>
Date:   Tue Jan 21 14:11:39 2014 -0800

    1. Allow generators to not start HTTP introspect by passing
       -1 as HTTP port in init_generator pysandesh
    2. Add UveInterVnStats, InterVnStats, virutalmachine_list to
       UveVirtualNetworkAgentTrace message in mock generator
    3. Allow user to specify number of instances per generator
       and number of virtual networks
Merge pull request #222 from Juniper/meghb_mock

Patch in: 6f425af08f02ed6c6bf676c25864ed0f0d3554ad
Add ability to send flow sandesh messages in mock_generator via
--num_flows_per_instance option
bug fix in contrail-status
Merge pull request #223 from Juniper/contrail_status_fix

bug fix in contrail-status