update bigcode

* submodules/bigcode 060b3ed...0d54b67 (2):
  > Merge into master from pull request #13: clean up static analysis warnings (https://github.com/floodlight/bigcode/pull/13)
  > Merge into master from pull request #12: Timer wheel implementation (https://github.com/floodlight/bigcode/pull/12)
update indigo

* submodules/indigo fb7ca89...9e0e6e0 (4):
  > Merge into master from pull request #91: OFConnectionManager: controller connection change notification (https://github.com/floodlight/indigo/pull/91)
  > Merge into master from pull request #92: OFConnectionManager: replace ASSERT with AIM_ASSERT (https://github.com/floodlight/indigo/pull/92)
  > Merge into master from pull request #89: clean up static analysis warnings (https://github.com/floodlight/indigo/pull/89)
  > Merge into master from pull request #85: Flowtable registration (https://github.com/floodlight/indigo/pull/85)
update infra

* submodules/infra e513a1f...6898254 (2):
  > Merge into master from pull request #15: AIM: add a debug-only assert macro (https://github.com/floodlight/infra/pull/15)
  > Merge into master from pull request #14: clean up clang static analysis warnings (https://github.com/floodlight/infra/pull/14)
update loxigen-artifacts

* submodules/loxigen-artifacts 7ac7d57...64cb7b6 (5):
  > Artifacts from https://github.com/floodlight/loxigen/compare/b45d6c1701806e94a4808279eb697008027dce97...0a48e0952154c621e00ca742049a85be1e455aaa
  > Artifacts from https://github.com/floodlight/loxigen/compare/d10a4a80fab5991cbe8df622b136e8e6ea30235d...b45d6c1701806e94a4808279eb697008027dce97
  > Artifacts from https://github.com/floodlight/loxigen/compare/152a6c61b932a552b482873ae7df194fdf8bd0d1...d10a4a80fab5991cbe8df622b136e8e6ea30235d
  > Artifacts from https://github.com/floodlight/loxigen/compare/19060b9bba8897eb7dc876d22129cbb81d999905...152a6c61b932a552b482873ae7df194fdf8bd0d1
  > Artifacts from https://github.com/floodlight/loxigen/compare/78a48f3838cd0fa0e9a5c7937351c544c946f586...19060b9bba8897eb7dc876d22129cbb81d999905
update switchlight-common

* submodules/switchlight-common 32bd4be...9a309b3 (3):
  > Merge into master from pull request #29: clean up static analysis warnings (https://github.com/floodlight/switchlight-common/pull/29)
  > Merge into master from pull request #28: minor ucli fixes (https://github.com/floodlight/switchlight-common/pull/28)
  > Merge into master from pull request #27: added counters for set, stats requests and convergence notifications (https://github.com/floodlight/switchlight-common/pul
precheckin: support overriding GCC make variable with CC

scan-build sets CC to ccc-analyzer.
l2table: fix clang-analyzer warning
abat-automerge: run clang static analysis
Merge into master from pull request #112:
enable clang static analysis in automerge (https://github.com/floodlight/ivs/pull/112)