Merge branch 'master' into develop
Adding of markers on the center of the page added.
First version of the Readme added.
Some minor JS improvements.
Symbols in the navigation bar changed.
Old readme removed.
Default coordinates abstracted to variables for easier changing.
Link to the live demo site added to the Readme.
Message added to inform the user to delete a new marker first before he can insert a new one.
I18n added and translations improved.
Merge branch 'develop'