Rework how Logger/ErrorManager interact so they can be half
mocked out (or, at least, used in a thread-safe-ish manner).

Change-Id: Ia5899640bdc101793819dab88c3fe6038a759abb
Reviewed-on: http://gerrit.dmdirc.com/2695
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: Idf38f5027a92166daf99039de75b759d47431de1
Reviewed-on: http://gerrit.dmdirc.com/2607
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Don't ask Main for the config directory.
Remove getMain() from Main.
Everything that needs a main now either gets given it, or asks something else.
Unfortunately, a few more dependencies on the static IdentityManager.getIdentityManager()
were introduced, but they can be tackled separately.
Fix unit tests for the above.

Change-Id: I9e42ac7f74453b739209a681d0a31f50c1be2a04
Depends-On: Ib5a9fdea5a2e25d5471d0b849f4f65fa0286d1f8
Reviewed-on: http://gerrit.dmdirc.com/2520
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I0d40c3ac86b9e06fad3f29bc36612b4162e54d1c
Reviewed-on: http://gerrit.dmdirc.com/2287
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: I1aa33d6e360f6050b02b7fe3f7db1312451c93fb
Reviewed-on: http://gerrit.dmdirc.com/2282
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: Ia90cb759b0777cf8d30eb6bfe30a5bece0105d24
Reviewed-on: http://gerrit.dmdirc.com/2281
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

Change-Id: If418fcbcafa64857e6a656bee08fef7399b6a2e3
Reviewed-on: http://gerrit.dmdirc.com/2280
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>

Change-Id: I635e0d111ed182713132145e4d5fb1654f776ec4
Reviewed-on: http://gerrit.dmdirc.com/2071
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I7f63fdd02ea0109fe31e55c44b078edae3862f32
Reviewed-on: http://gerrit.dmdirc.com/1726
Reviewed-by: Chris Smith <chris@dmdirc.com>
Automatic-Compile: DMDirc Local Commits <dmdirc@googlemail.com>

Fixes issue 4253

Change-Id: Ibb46a6a1ba5c62d525b65f55d39632b82e335539
Reviewed-on: http://gerrit.dmdirc.com/1455
Automatic-Compile: Gregory Holmes <greg@dmdirc.com>
Reviewed-by: Gregory Holmes <greg@dmdirc.com>