phrase on training interface needs correction/rephrasing

The text in the two menus for training (segmenting and recognition) needs to be changed. I suggest switching from currently "New model ... Or Upload a model ... Or select an existing one" to: "Train a new model ... or upload a model ... or select a model already in eScriptorium" And "New model ... Or upload a model ... Or select an existing one" to: "Train a new model ... or upload a model ... or select a model already in eScriptorium"