expand allowed file types in rcverify and fix some typos (#300)

* Allow images and empty files to pass rcverify file type check
* Fix a few misc typos in documentation
diff --git a/README.md b/README.md
index 177d971..ece2a0a 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@
 [![License](https://img.shields.io/badge/license-Apache--2.0-blue.svg)](http://www.apache.org/licenses/LICENSE-2.0)
 [![Build Status](https://travis-ci.org/apache/openwhisk-release.svg?branch=master)](https://travis-ci.org/apache/openwhisk-release)
 
-This project provides the Apache OpenWhisk project's Release Managers with the instructions and automation needed to ensure project releases comply with both the Apache Software Foundation's (ASF) [Release Creation Process](http://www.apache.org/dev/release-publishing.html) and [Release Policy](http://www.apache.org/legal/release-policy.html).
+This project provides the Apache OpenWhisk project's Release Managers with the instructions and automation needed to ensure that project releases comply with both the Apache Software Foundation's (ASF) [Release Creation Process](http://www.apache.org/dev/release-publishing.html) and [Release Policy](http://www.apache.org/legal/release-policy.html).
 
 Specifically, this project documents the steps a Release Manager must take to make a release of an OpenWhisk software component and where possible provides scripts and tool support to reduce the number of manual steps and potential for human error during the process. Script support is provided for:
 - Packaging and signing source code (compressed archives)
diff --git a/docs/release_instructions.md b/docs/release_instructions.md
index 252e3be..89bc119 100644
--- a/docs/release_instructions.md
+++ b/docs/release_instructions.md
@@ -91,13 +91,13 @@
     "openwhisk-repo-name-two"
   ],
   "openwhisk_repo_name_one": {
-    "name": "Apache OpenWhisk Repo Name",
+    "name": "OpenWhisk Repo Name",
     "hash": "<GIT COMMIT HASH>",
     "repository": "https://github.com/apache/openwhisk-<REPO-NAME-ONE>.git",
     "branch": "master"
   },
   "openwhisk_repo_name_two": {
-    "name": "Apache OpenWhisk Repo Two",
+    "name": "OpenWhisk Repo Two",
     "hash": "<GIT COMMIT HASH>",
     "repository": "https://github.com/apache/openwhisk-<REPO-NAME-TWO>.git",
     "branch": "master"
diff --git a/tools/config_template.json b/tools/config_template.json
index 556ee4f..d6e43ed 100644
--- a/tools/config_template.json
+++ b/tools/config_template.json
@@ -8,15 +8,15 @@
     "openwhisk-repo-name-two"
   ],
   "openwhisk_repo_name_one": {
-    "name": "Apache OpenWhisk Repo Name",
+    "name": "OpenWhisk Project One",
     "hash": "<GIT COMMIT HASH>",
-    "repository": "https://github.com/apache/openwhisk-<REPO-NAME-TWO>.git",
+    "repository": "https://github.com/apache/openwhisk-<REPO-NAME-ONE>.git",
     "branch": "master"
   },
   "openwhisk_repo_name_two": {
-    "name": "Apache OpenWhisk Repo Two",
+    "name": "OpenWhisk Project Two",
     "hash": "<GIT COMMIT HASH>",
-    "repository": "https://github.com/apache/openwhisk-<REPO-NAME-ONE>.git",
+    "repository": "https://github.com/apache/openwhisk-<REPO-NAME-TWO>.git",
     "branch": "master"
   }
 }
diff --git a/tools/rcverify.sh b/tools/rcverify.sh
index c4355d8..b741bf5 100755
--- a/tools/rcverify.sh
+++ b/tools/rcverify.sh
@@ -171,11 +171,11 @@
 validate $? 0 "$CMD"
 
 printf "scanning for executable files..."
-EXE=$(find "$DIR/$BASE" -type f ! -name "*.sh" ! -name "*.sh" ! -name "*.py" ! -name "*.php" ! -name "gradlew" ! -name "gradlew.bat" ! -path "*/bin/*" -perm -001)
+EXE=$(find "$DIR/$BASE" -type f ! -name "*.sh" ! -name "*.sh" ! -name "*.py" ! -name "*.php" ! -name "gradlew" ! -name "gradlew.bat" ! -name "exec" ! -path "*/bin/*" -perm -001)
 validate "$EXE" "" "$EXE"
 
-printf "scanning for non-text files..."
-EXE=$(find "$DIR/$BASE" -type f -exec file --mime {} \; | grep -v ": text/")
+printf "scanning for unexpected file types..."
+EXE=$(find "$DIR/$BASE" -type f -exec file --mime {} \; | grep -v ": text/" | grep -v ": inode/x-empty" | grep -v ": image/")
 validate "$EXE" "" "$EXE"
 
 printf "scanning for archives..."