* 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

* Bug 1301887 - File::Slurp triggers warnings on perl 5.24 and it is recommended to not use it (#21)

r=mtyson

* Fix for vrite in aa735d4

* Added https://gitweb.gentoo.org/proj/gentoo-bugzilla.git/commit/?id=ca7bfc9c485c959fad2aee1f7c1dbc0fb484553b

r=dkl a=sgreen

r=?,a=?

r=sgreen, a=sgreen

r=dkl, a=LpSolit

r=dkl,a=LpSolit

r/a=LpSolit

r/a=LpSolit

Bug 676844: Replace ThrowCodeError() by ThrowUserError() when the error is not triggered by the code itself
r=glob a=LpSolit

r=wicked a=LpSolit

Bug 706412 - make JobQueue.pm support insertion of Job objects, and also enable prioritization. r,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=mkanat, a=mkanat

https://bugzilla.mozilla.org/show_bug.cgi?id=617012

Bug 530270: Whining fails if mail queueing is enabled - Patch by FrÃdÃric Buclin <LpSolit@gmail.com> r=mkanat a=LpSolit

Patch by Max Kanat-Alexander <mkanat@bugzilla.org> r=LpSolit, a=mkanat

Bug 520948: Use Bugzilla->feature and feature_enabled everywhere instead of checking if modules are installed
Patch by Max Kanat-Alexander <mkanat@bugzilla.org> r=LpSolit, a=LpSolit

Patch By Max Kanat-Alexander <mkanat@bugzilla.org> and Mark Smith <mark@plogs.net> r=glob, a=mkanat