Update git submodules

* Update docs/submodules/modeling/modelspec.git from branch 'master'
  to 2ec88acc71c49e54d96066efae285da130453534
  - Updates to Common
    
    Finished a draft of Business Interaction, including ties to
    LicenseAgreement, ServiceOrder, and VesEvent.
    
    Issue-ID: MODELING-104
    
    Change-Id: I27109e4dbebe9bf62bde9667ad2b4b10249eb6ee
    Signed-off-by: Kevin Scaggs <ks0567@att.com>
diff --git a/docs/submodules/modeling/modelspec.git b/docs/submodules/modeling/modelspec.git
index 2456478..2ec88ac 160000
--- a/docs/submodules/modeling/modelspec.git
+++ b/docs/submodules/modeling/modelspec.git
@@ -1 +1 @@
-Subproject commit 2456478e76d787b28972d9697250e49d602c90fb
+Subproject commit 2ec88acc71c49e54d96066efae285da130453534