readme update

Merge pull request #64 from ryran/new-search-by-product

implement #63: add --q-product option to search by product_name

version bump

Merge pull request #56 from ryran/new-iava-support

New iava support and numerous other enhancements. (See PR for full details.

version bump

fix bug #50; implement RFE #49

rename --pastebin alias -p to -P; add --product alias -p #48

fix bug #45; implement RFE #43 #44 #46 #47

fix #42

Merge pull request #40 from ryran/nextgen

split data api out into separate library: rhsda.py; retool everything