This also fixes a problem with "initial salmon slap", which was a
problem for newly registered accounts which would have their first
salmon slap fail to distribute since there was a problem with Magicsig
keys. Apparently we have to re-read them with importKeys so the
Crypt_RSA objects publicKey and privateKey match later instances of them.
I think it may have been that generate() doesn't specify a signatureMode,
but I leave experimentation of that to the future.
In commit e95f77d34c Magicsig lost the 'staticGet' function (later renamed to getKV in 2a4dc77a63 ), which was important to properly initialize the Magicsig object (fromString)
In some brief tests, this causes no problems.
In this state however, you would need to modify DB_DataObject to have a static declaration of staticget (and probably pkeyGet). The next commit will change the staticGet overload to a unique function name (like getKV for getKeyValue), which means we can properly call the function by PHP Strict Standards.
Under MySQL, new tables will be created as InnoDB with UTF-8 (utf8/utf8_bin) same as core tables.
Existing plugin tables will have table engine and default charset/collation updated, and string columns will have charset updated, at checkschema time.
Switched from 'DESCRIBE' to INFORMATION_SCHEMA for pulling column information in order to get charset. A second hit to INFORMATION_SCHEMA is also needed to get table properties.
Indices were only being created at table creation time, which ain't so hot. Now also adding/dropping indices when they change.
Fixed up some schema defs in OStatus plugin that were a bit flaky, causing extra alter tables to be run.
TODO: Generalize this infrastructure a bit more up to base schema & pg schema classes.
