Allow some abbreviations per-domain

[aspiers]

Some address abbreviations only appear on certain domains (e.g. see #264).

rolod0x pre-calculates a mapping from all possible abbreviations of each address (both upper- and lower-case) and stores it in memory within each tab on which it's active. That means that if the address book is big, this mapping could take quite a bit of memory.

I haven't done the analysis on this, but it might be an opportunity for performance optimization to only include some abbreviations on the sites which actually need them.