Updates to Hebrew translation

Alas, I made the two types of changes (punctuation and word choice) in the same commit, and I do not have a tool for easily separating them. I hope the changes will be accepted as they are.

Notable changes:

1. use different types of quotes consistently. (&rdquo and &rsquo at start of quotation, &lsquo and &ldquo at end of quotation, the Unicode HEBREW PUNCTUATION GERSHAYIM for abbreviations and HEBREW PUNCTUATION GERESH for the transliteration of “chat”)

1. use HEBREW PUNCTUATION MAQAF.

1. use RIGHT-TO-LEFT MARK in select strategic places.

1. make use of masculine form consistently. If wee seek gender neutrality in the text, let us wait for a global consensus on an elegant and aesthetically-pleasing way to do it.