Allow reading data from config.txt file rather than having it hard-coded in the source.
Allow reading data from config.txt file rather than having it hard-coded in the source.

Siftah/Digital-Ocean-Dynamic-DNS-Updater,bensquire/Digital-Ocean-Dynamic-DNS-Updater,Siftah/Digital-Ocean-Dynamic-DNS-Updater,bensquire/Digital-Ocean-Dynamic-DNS-Updater