* use base to make merging with bmo easier

* Revert "Bug 1497042 - Enclose table names in CREATE queries"

This reverts commit 62d5637a.

* refactor Bugzilla::DB to not subclass DBI

* use DBIx::Connector to manage database connections

* Ensure we always call DBIx::Connector->dbh before any DBI method

The code didn't allow a way of doing this without a lot of work.

So I had to take the following approach:
The 'dbh' attribute is now a method that delegates to DBIx::Connector's dbh
method. Per the docs, ->dbh() "Returns the connection's database handle. It will
use a an existing handle if there is one, if the process has not been forked or
a new thread spawned, and if the database is pingable. Otherwise, it will
instantiate, cache, and return a new handle."

Then there is the matter of the 'handles' on dbh. I've used Package::Stash to
insert proxy methods into the class when it is loaded.

* Bug 1328659 - Add support for utf8=utf8mb4 (switches to dynamic/compressed row format, and changes charset to utf8mb4)

* add deps

* add prepare_cached to the list of delegated methods.

This was added in bug 340160

* improve the migration to compressed/dynamic rows, skip views

* add missing semicolon

* remove pre-utf8mb4 emoji support

* fix small issue

* add debugging fatal error

blame jeff

Bug 1171811: [Voting] When a user votes enough to confirm an individual bug, the bug does not change to CONFIRMED properly
r=LpSolit,a=simon

r=dkl a=sgreen

r/a=glob

r/a=justdave

r=dkl a=justdave

r/a=LpSolit

r/a=LpSolit

r/a=LpSolit

r=LpSolit,a=LpSolit

r/a=LpSolit

Bug 652047: checksetup.pl fails to compile/run if the Voting extension is enabled on a fresh install
r=glob a=LpSolit

Bug 450546: Use visible_bugs() where appropriate instead of/in combination with can_see_bug() to improve performance
r/a=LpSolit

r=glob a=LpSolit

Bug 680131: Replace the MPL 1.1 license by the MPL 2.0 one in all files, and add it to files which miss one
r=kiko r=mkanat r=mrbball a=LpSolit

r/a=mkanat

r/a=mkanat

r=dkl a=LpSolit

for bugmail.
r=LpSolit, a=LpSolit

r/a=mkanat

Bug 652444 - Voting for bugs where the product allows only one vote per bug but that isn't clear in the voting form or help
r/a=LpSolit

Adding missing added file from previous checkin. Previous r/a=mkanat

r/a=mkanat

r=mkanat a=LpSolit

r=mkanat,a=LpSolit

r=dkl a=LpSolit

calling $class->VERSION on them won't throw an error on Perl 5.12 when there
are non-numeric characters in BUGZILLA_VERSION.
r=LpSolit, a=LpSolit

r/a=mkanat

r/a=mkanat

VALIDATOR_DEPENDENCIES, so that they don't need custom code in set_all.

[r=mkanat a=mkanat]

r=reed a=LpSolit

r=LpSolit, a=LpSolit

field-descs globally for all template calls
r=LpSolit, a=LpSolit

Bugzilla->template_inner("")).
r=LpSolit, a=LpSolit

in the Voting extension. (Thanks to timello for pointing this out!)