Add more compiler versions to the travis file

Author: achudnov

.travis.yml

@@ -45,6 +45,9 @@ matrix:
   - env: BUILD=cabal GHCVER=7.10.3 CABALVER=1.22
     compiler: ": #GHC 7.10.3"
     addons: {apt: {packages: [cabal-install-1.22,ghc-7.10.3], sources: [hvr-ghc]}}
+  - env: BUILD=cabal GHCVER=8.0.2 CABALVER=1.24
+    compiler: ": #GHC 8.0.2"
+    addons: {apt: {packages: [cabal-install-1.24,ghc-8.0.2], sources: [hvr-ghc]}}
 
   # Build with the newest GHC and cabal-install. This is an accepted failure,
   # see below.
@@ -66,6 +69,18 @@ matrix:
     compiler: ": #stack 7.10.3"
     addons: {apt: {packages: [ghc-7.10.3], sources: [hvr-ghc]}}
 
+  - env: BUILD=stack ARGS="--resolver lts-6"
+    compiler: ": #stack 7.10.3"
+    addons: {apt: {packages: [ghc-7.10.3], sources: [hvr-ghc]}}
+
+  - env: BUILD=stack ARGS="--resolver lts-7"
+    compiler: ": #stack 8.0.1"
+    addons: {apt: {packages: [ghc-8.0.1], sources: [hvr-ghc]}}
+
+  - env: BUILD=stack ARGS="--resolver lts-8"
+    compiler: ": #stack 8.0.2"
+    addons: {apt: {packages: [ghc-8.0.2], sources: [hvr-ghc]}}
+
   # Nightly builds are allowed to fail
   - env: BUILD=stack ARGS="--resolver nightly"
     compiler: ": #stack nightly"
@@ -142,4 +157,4 @@ script:
       SRC_TGZ=$(cabal info . | awk '{print $2;exit}').tar.gz && \
         (cd dist && cabal install --force-reinstalls "$SRC_TGZ")
       ;;
-  esac
+  esac