Set author from git config in setup script.

This will automatically set the author of the first commit to the name
and email that is set in the global git config. For most situations this
should be what you want. The option to specify a different author
remains for the cases where a different behaviour is desired.

README.md

@@ -85,7 +85,7 @@ the [setup script](setup.sh) as follows:
 ``` bash
 $ git clone https://github.com/bsamseth/cpp-project  # Or use ssh-link if you like.
 $ cd cpp-project
-$ sh setup.sh "Your Name <your@email.com>"
+$ sh setup.sh
 ```
 The result is a fresh Git repository with one commit adding all files from the boiler plate. 
 

setup.sh

@@ -8,10 +8,13 @@ git reset "$(git rev-list --max-parents=0 --abbrev-commit HEAD)"
 
 git add --all
 
+name=$(git config user.name)
+email=$(git config user.email)
+
 # If this script is called with an argument, use that as the amended author
 # EX: ./setup.sh "Author Name <author_email@email.com>"
 if [[ "$1" ]]; then
 	git commit --amend --author="$1"
 else
-	git commit --amend  # Will prompt for message.
+	git commit --amend --author="$name <$email>" 
 fi