Use numpy 1.17; remove builds for numba master

 - Use Numpy 1.17 for CI builds
 - Remove CI builds for numba master (will use internal)
 - Trigger CI only on master branch

Author: Vyacheslav-Smirnov

.travis.yml

@@ -2,6 +2,10 @@
 
 dist: trusty
 
+branches:
+  only:
+  - master
+
 env:
     global:
         - GIT_DESCRIBE_TAG=0.29.2

azure-pipelines.yml

@@ -1,3 +1,9 @@
+trigger:
+- master
+
+pr:
+- master
+
 jobs:
 - template: buildscripts/azure/template-windows.yml
   parameters:
@@ -7,7 +13,7 @@ jobs:
     matrix:
       py3.7_numpy1.16:
         PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
+        NUMPY_VER: '1.17'
         USE_NUMBA_MASTER: 'False'
         SDC_CONFIG_PIPELINE_SDC: 'False'
 
@@ -19,7 +25,7 @@ jobs:
     matrix:
       py3.7_numpy1.16:
         PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
+        NUMPY_VER: '1.17'
         USE_NUMBA_MASTER: 'False'
         SDC_CONFIG_PIPELINE_SDC: 'False'
 
@@ -31,42 +37,6 @@ jobs:
     matrix:
       py3.7_numpy1.16:
         PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
+        NUMPY_VER: '1.17'
         USE_NUMBA_MASTER: 'False'
         SDC_CONFIG_PIPELINE_SDC: 'False'
-
-- template: buildscripts/azure/template-windows.yml
-  parameters:
-    name: Windows2016_vs2017_NumbaMaster
-    vmImage: vs2017-win2016
-    allowFailure: true
-    matrix:
-      py3.7_numpy1.16:
-        PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
-        USE_NUMBA_MASTER: 'True'
-        SDC_CONFIG_PIPELINE_SDC: 'False'
-
-- template: buildscripts/azure/template-linux-macos.yml
-  parameters:
-    name: macOS1013_xcode9_NumbaMaster
-    vmImage: xcode9-macos10.13
-    allowFailure: true
-    matrix:
-      py3.7_numpy1.16:
-        PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
-        USE_NUMBA_MASTER: 'True'
-        SDC_CONFIG_PIPELINE_SDC: 'False'
-
-- template: buildscripts/azure/template-linux-macos.yml
-  parameters:
-    name: Ubuntu1604_NumbaMaster
-    vmImage: ubuntu-16.04
-    allowFailure: true
-    matrix:
-      py3.7_numpy1.16:
-        PYTHON_VER: '3.7'
-        NUMPY_VER: '1.16'
-        USE_NUMBA_MASTER: 'True'
-        SDC_CONFIG_PIPELINE_SDC: 'False'