Use migrations from metasploit_data_models

[#44034071]

metasploit_data_models version 0.5.0 copied the migrations from
metasploit-framework/data/sql/migrate to
metasploit_data_models/db/migrate so that specs could be written the Mdm
models in metasploit_data_models.  As part of the specs, :null => false
columns that should be :null => true were discovered, so a new migration
was added, but to metasploit_data_models/db/migrate, so it could be
tested.  Instead of replicating migrations back and forth, I'm removing
the migrations completely from metasploit-framework and changing the
default migration path in Msf::DbManager#migration_paths to
MetasploitDataModels.root.join('db', 'migrate').

Author: limhoff-r7

Gemfile

@@ -7,7 +7,7 @@ gem 'activerecord'
 # Needed for some admin modules (scrutinizer_add_user.rb)
 gem 'json'
 # Database models shared between framework and Pro.
-gem 'metasploit_data_models', :git => 'git://github.com/rapid7/metasploit_data_models.git', :tag => '0.4.0'
+gem 'metasploit_data_models', :git => 'git://github.com/rapid7/metasploit_data_models.git', :tag => '0.5.1'
 # Needed by msfgui and other rpc components
 gem 'msgpack'
 # Needed by anemone crawler

Gemfile.lock

@@ -1,9 +1,9 @@
 GIT
   remote: git://github.com/rapid7/metasploit_data_models.git
-  revision: 448c1065329efea1eac76a3897f626f122666743
-  tag: 0.4.0
+  revision: a56276f8f6d1f2d532c03d2900537cadf94e1411
+  tag: 0.5.1
   specs:
-    metasploit_data_models (0.4.0)
+    metasploit_data_models (0.5.1)
       activerecord (>= 3.2.10)
       activesupport
       pg
@@ -25,7 +25,7 @@ GEM
       multi_json (~> 1.0)
     arel (3.0.2)
     builder (3.0.4)
-    coderay (1.0.8)
+    coderay (1.0.9)
     diff-lcs (1.1.3)
     i18n (0.6.1)
     json (1.7.7)
@@ -35,10 +35,10 @@ GEM
     nokogiri (1.5.6)
     pcaprub (0.11.3)
     pg (0.14.1)
-    pry (0.9.10)
+    pry (0.9.12)
       coderay (~> 1.0.5)
       method_source (~> 0.8)
-      slop (~> 3.3.1)
+      slop (~> 3.4)
     rake (10.0.2)
     redcarpet (2.2.2)
     robots (0.10.1)
@@ -54,7 +54,7 @@ GEM
       multi_json (~> 1.0.3)
       simplecov-html (~> 0.5.3)
     simplecov-html (0.5.3)
-    slop (3.3.3)
+    slop (3.4.3)
     tzinfo (0.3.35)
     yard (0.8.3)