Upgrage ImageNet LMDB packages

[Chunosov]

1. Currently ck-caffe repo has a set of packages for ImageNet LMDB

imagenet-2012-val-lmdb-224
imagenet-2012-val-lmdb-227
imagenet-2012-val-lmdb-256

and more can be added in future. All the packages contain the same custom.py and install.sh files. These files could be reused.

2. It's very hard to identify a package in the selection when several ones are installed:

0) ImageNet dataset (validation, LMDB) - v2012 (64bits,bvlc-alexnet,caffe,channel-stable,dataset,default,host-os-linux-64,ilsvrc2012,imagenet,lmdb,resize-256,target-os-linux-64,v2012,val-lmdb (644bfa6d52f03f5f))

1) ImageNet dataset (validation, LMDB) - v2012 (64bits,bvlc-googlenet,caffe,channel-stable,dataset,host-os-linux-64,ilsvrc2012,imagenet,lmdb,resize-224,target-os-linux-64,v2012,val-lmdb (c0f91c3d4f828c6d))

2) ImageNet dataset (validation, LMDB) - v2012 (64bits,caffe,channel-stable,dataset,default,host-os-linux-64,ilsvrc2012,imagenet,inception-v3,lmdb,resize-299,target-os-linux-64,v2012,val-lmdb (842ac8c08ba25bcd))

3) ImageNet dataset (validation, LMDB) - v2012 (64bits,caffe,channel-stable,dataset,deepscale-squeezenet-1.0,deepscale-squeezenet-1.1,host-os-linux-64,ilsvrc2012,imagenet,lmdb,resize-227,target-os-linux-64,v2012,val-lmdb (9aeb17bb12280c6a))

4) ImageNet dataset (validation, LMDB) - v2012 (64bits,caffe,channel-stable,dataset,default,host-os-linux-64,ilsvrc2012,imagenet,inception-v3,lmdb,resize-299,target-os-linux-64,v2012,val-lmdb (f89cd4ee8885cfe7))

One should carefully study a bunch of tags and search for something like resize-227. It's be better if image size will be added to package_extra_name meta property.

[psyhtest]

Makes a lot of sense!

[Chunosov]

I've fixed p.2