iOS: Fix dw_mle_set_word_wrap() and dw_checkbox_get(). The checkbox code is a recent breakage, from a method conflict. The MLE word wrap code isn't pretty, not sure this is the best way... but it works, so using it for the time being.

# Set these here to change the version for all platforms
DW_MAJOR_VERSION=3
DW_MINOR_VERSION=2