Box rolls out Box Sign, which lets users electronically sign contracts and request signatures, following its $55M acquisition of SignRequest earlier this year (Mike Wheatley/SiliconANGLE)

 Mike Wheatley / SiliconANGLE: Box rolls out Box Sign, which lets users electronically sign contracts and request signatures, following its $55M acquisition of SignRequest earlier this year  —  Box Inc. is building out its content...