Update license header

add v1.0 release links (#139)

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>

updating IC evaluation dataset to 0.7 official balanced set

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>

Fixed license confusion.

Previously there were two licenses on some files: EEMBC's
and Apache 2.0. Now there is only one license: Apache 2.0.

add references also at top level

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>