Bug fix and Document fix

Removed the string object from config.json as it's now all in the locale.
and I fixed data.getdata() to return an error code if the index is out of bounds, it now returns a 1.

Signed-off-by: deadvey <deadvey@deadvey.com>

example-config.json

@@ -21,17 +21,5 @@
     "atom": true,
     "date_format": "yyyy-MM-dd",
     "time_zone": "+0000",
-    "string": {
-        "signup_agreement": "I agree to not post illegal or hateful content",
-        "signups_unavailable": "Sorry, this server does not allow signups",
-        "user_exists": "Sorry, this user already exists, try a different username",
-        "user_doesnt_exist": "Sorry, this user does not exist",
-        "comment_doesnt_exist": "This comment doesn't exist, this could be because the post it was attached to was deleted",
-        "post_doesnt_exist": "This post doesn't exist or was deleted",
-        "delete_account_confirmation": "Delete my account - (I agree that my account and all of my posts will be permanently deleted instantly)",
-        "incorrect_password": "Incorrect Password",
-        "rss_disabled": "Sorry, RSS is disabled",
-        "attribution": "Powered by blogger-nodejs: <a href='https://git.javalsai.tuxcord.net/deadvey/blogger-nodejs'>Source Code</a>, <a href='https://git.javalsai.tuxcord.net/deadvey/blogger-nodejs/raw/branch/master/LICENSE'>license (WTFPL)</a>"
-    },
     "css": ""
 }