Adding smalltalkCI files

Author: olekscode

.smalltalk.ston

@@ -0,0 +1,8 @@
+SmalltalkCISpec {
+  #loading : [
+    SCIMetacelloLoadSpec {
+      #baseline : 'DataFrame',
+      #platforms : [ #pharo ]
+    }
+  ]
+}

.travis.yml

@@ -0,0 +1,37 @@
+language: smalltalk
+sudo: false
+
+# Select operating system(s)
+os:
+  - linux
+#  - osx
+
+# Select compatible Smalltalk image(s)
+smalltalk:
+#  - Squeak-trunk
+#  - Squeak-5.1
+#  - Squeak-5.0
+#  - Squeak-4.6
+#  - Squeak-4.5
+
+#  - Pharo-alpha
+#  - Pharo-stable
+#  - Pharo-7.0
+  - Pharo-6.0
+#  - Pharo-5.0
+#  - Pharo-4.0
+#  - Pharo-3.0
+
+#  - Pharo64-alpha
+#  - Pharo64-stable
+#  - Pharo64-7.0
+#  - Pharo64-6.0
+
+#  - GemStone-3.3.0
+#  - GemStone-3.2.12
+#  - GemStone-3.1.0.6
+
+# Uncomment to enable caching (only useful for GemStone builds (3x faster))
+#cache:
+#  directories:
+#    - $SMALLTALK_CI_CACHE