halidetuner: Reference funcs by name in all places
halide: Update apps/wavelet for reference-by-name
halide: Progress towards making interpolate work

It seems to have been out of commission since at least 2013-09.
halide: Increase input size for blur
halide: Fix bilateral_grid test app

It was using an outdated syntax for implicit arguments
halide: Increase bilateral_grid input size
Merge pull request #16 from jrk/master

Halide tuner improvements