Merge pull request #40 from kamatama41/release-0.4.2

Update to 0.4.2

Author: kamatama41

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.4.2 (April 9, 2017)
+
+ * Add support for verifying downloads of Terraform
+
 ## 0.4.1 (March 8, 2017)
 
  * Update error_and_die functions to better report their source location

libexec/tfenv---version

@@ -12,7 +12,7 @@
 set -e
 [ -n "${TFENV_DEBUG}" ] && set -x
 
-version="0.4.1"
+version="0.4.2"
 git_revision=""
 
 if cd "${BASH_SOURCE%/*}" 2>/dev/null && git remote -v 2>/dev/null | grep -q tfenv; then