Added ghc7.10.3 on CI

Author: VyacheslavHashov

.travis.yml

@@ -7,6 +7,9 @@ language: generic
 
 os:
   - linux
+env:
+  - STACK_YAML=stack-ghc7.10.3.yaml
+  - STACK_YAML=stack-ghc8.0.2.yaml
 
 services:
   - postgresql

stack-ghc7.10.3.yaml

@@ -0,0 +1,15 @@
+resolver: lts-8.21
+compiler: ghc-7.10.3
+compiler-check: match-exact
+
+packages:
+- '.'
+extra-deps: 
+    - socket-0.8.0.0
+    - socket-unix-0.2.0.0
+
+# Override default flag values for local packages and extra-deps
+flags: {}
+
+# Extra package databases containing global packages
+extra-package-dbs: []

stack-ghc8.0.2.yaml

@@ -0,0 +1,22 @@
+# This file was automatically generated by 'stack init'
+#
+resolver: lts-8.21
+
+packages:
+- '.'
+# Dependency packages to be pulled from upstream that are not in the resolver
+# (e.g., acme-missiles-0.3)
+extra-deps: 
+    - socket-0.8.0.0
+    - socket-unix-0.2.0.0
+# <<<<<<< HEAD
+# =======
+#     - store-core-0.3
+#     - QuickCheck-2.9.2
+# >>>>>>> QuickCheck tests for existing codecs
+
+# Override default flag values for local packages and extra-deps
+flags: {}
+
+# Extra package databases containing global packages
+extra-package-dbs: []

stack.yaml

@@ -0,0 +1 @@
+stack-ghc8.0.2.yaml