Sort sql.qrc when generating, emphasize script
Modify the update SQL resource script to version-sort output and
batch append it to the sql.qrc file. This improves readability in
'git diff' output, and might slightly improve performance, too.
Move UPDATE_SQL_RESOURCE.sh to SQL/updateSQLResource.sh, making it
easier to find, right next to the other SQL management script. This
required a few changes to the logic.
Document the new behavior in upgradeSchema.sh, keep the manual
instructions in case the script doesn't work.
Comments, comments everywhere.
(I really wish I would've known about this script earlier...)
Resolves GH-268.