Added argument to select image when starting app remotely.
Added argument to set work-group size when starting app remotely.
Refactored timing and verification code.
Added cstdlib to Linux frontend includes.
Added ability to disable verification when launching app remotely.
Added checkbox to toggle verification.
Added flag to disable verification to Linux frontend.
Added argument to set number of iterations in Linux frontend.
Added ability to set number of iterations when launching app remotely.
Added spinner to select number of iterations.
Fixed spinner for iterations.