Add basic auth api token support (#7)

Author: miguelbemartin

src/teamwork.sh

@@ -14,7 +14,7 @@ teamwork::add_comment() {
   local -r body=$1
 
   response=$(curl -X "POST" "$TEAMWORK_URI/projects/api/v1/tasks/$TEAMWORK_TASK_ID/comments.json" \
-       -H 'Authorization: Bearer '$TEAMWORK_API_TOKEN \
+       -u $TEAMWORK_API_TOKEN':' \
        -H 'Content-Type: application/json; charset=utf-8' \
        -d "{ \"comment\": { \"body\": \"$body\", \"notify\": \"\", \"content-type\": \"text\", \"isprivate\": false } }" )