* elementwise_add with bcast: Brian's implementation by Brian added, with default bcasts
* elementwise_add with bcast: GetExpectedKernelType added to elementwise_op
* elementwise_add with bcast: use_mkldnn attribute added
* elementwise_add with bcast: changes after review and some formatting
* elementwise_add with bcast: changes after style check
* elementwise_add with bcast: changes after style check cont.
* elementwise_add with bcast: MKLDNN unittests added
* elementwise_add with bcast: original unittests with use_mkldnn flag
* elementwise_add with bcast: handling of MKLDNN format corrected
* elementwise_add with bcast: setting MKLDNN format turned into lambda
* elementwise_add with bcast: MKDNN format setting turned into separate function
* elementwise_add with bcast: condition for choosing MKLDNN simplified
* elementwise_add with bcast: fix for MKLDNN format set incorrectly in bcasts
* elementwise_add with bcast: changes in unittests for broadcasts
* elementwise_add with bcast: fixes in unittests regarding dimensions
* elementwise_add with bcast: bring back correct format setting in mklml grad path
* elementwise_add with bcast: fixed compilation error
Tomasz Patejko
e26f51ce74