Cleanups while looking at issue #268
minSize from provided sizes

create minSize Dimension from provided width and height
Merge pull request #272 from Zavael/master

minSize from provided sizes
Supplement for #271 to deprecate alternative min/max size hint
Add info to the README about active C++ port and Ruby bindings
Merge pull request #273 from Benjamin-Dobell/zxing-cpp-info

Add info to the README about active C++ port and Ruby bindings
Reviewed ES translations, fixes minor typos
Merge pull request #274 from facundofarias/master

Reviewed ES translations, fixes minor typos
Add Facundo for Spanish translation
Merge remote-tracking branch 'zxing/master'