Added excpetion handling while connecting to zookeeper. Also fixed some pep8 issues
Added reconnect logic for redis connection
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.
Add introspect command to clear a BGP neighbor by FQN.
Tweak UnregisterPeer to not do a find on the peer_list_.
Add test that passes empty string to the clear command.
Merge pull request #194 from Juniper/nsheth_clear_bgp_neighbor

Add introspect command to clear a BGP neighbor by FQN.
Changes to remove the viz_constants.cpp file from being included in
querty.cc Instead add the object file when building the targets
Merge pull request #199 from Juniper/arvind-development1

Changes to remove the viz_constants.cpp file included in query.cc
Tweak log message and level for Router ID and AS change.
Make sure we send appropriate cease subcodes.
Merge pull request #201 from Juniper/nsheth_cease_subcode

Make sure we send appropriate cease subcodes.
Missed test files in the previous commit.
Merge pull request #202 from Juniper/nsheth_cease_subcode

Missed test files in the previous commit.
Send Notifications in more cases i.e. if peer doesn't have a session.
Use the SM passive/active session to send a Notification in such cases.
Merge pull request #203 from Juniper/nsheth_cease_subcode

Send Notifications in more cases i.e. if peer doesn't have a session.
Delete un-used variables for inet-interfaces
Fix label not allocated for vgw interface
Add UT to validate label
Merge pull request #205 from praveenkv/master

VGW bug fixes
Change to disable logging via environment variable
Merge pull request #200 from Juniper/nsheth_bgp_log

Tweak log message and level for Router ID and AS change.
Merge pull request #206 from Juniper/logchg

Change to disable logging via environment variable