Update Test::Builder to use Test2 under the hood

This commit is a complete migration to using Test2 under the hood.

This commit incorperates all the changes that were made for the
Test::Stream work. This work was all squashed for clarity. The original
Stream/Matser branch had a lot of bugfixes and Test::Stream API changes
in its history that could only serve to confuse.

.gitignore

@@ -9,4 +9,4 @@ Build
 _build
 cover_db/
 MYMETA.*
-
+t2_lib

.travis.yml

@@ -8,8 +8,9 @@ perl:
   - "5.16"
   - "5.18"
   - "5.20-thr"
+  - "5.22-thr"
   - "blead"
 before_install:
   - git clone git://github.com/travis-perl/helpers ~/travis-perl-helpers
   - source ~/travis-perl-helpers/init --auto
-  - cpan-install SQL::Abstract::Test
+  - cpan-install Test2

MANIFEST

@@ -20,6 +20,9 @@ lib/Test/use/ok.pm
 Makefile.PL
 MANIFEST			This list of files
 MANIFEST.SKIP
+profiling/compile.pl
+profiling/long-run.pl
+profiling/run.pl
 README
 t/00compile.t
 t/00test_harness_check.t
@@ -31,6 +34,7 @@ t/bail_out.t
 t/BEGIN_require_ok.t
 t/BEGIN_use_ok.t
 t/buffer.t
+t/Bugs/600.t
 t/Builder/Builder.t
 t/Builder/carp.t
 t/Builder/create.t
@@ -63,7 +67,6 @@ t/capture.t
 t/check_tests.t
 t/circular_data.t
 t/cmp_ok.t
-t/dependents.t
 t/depth.t
 t/diag.t
 t/died.t
@@ -130,12 +133,12 @@ t/Simple/load.t
 t/skip.t
 t/skipall.t
 t/SmallTest.pm
+t/Stream/Subtest.t
 t/subtest/args.t
 t/subtest/bail_out.t
 t/subtest/basic.t
 t/subtest/die.t
 t/subtest/do.t
-t/subtest/exceptions.t
 t/subtest/for_do_t.test
 t/subtest/fork.t
 t/subtest/implicit_done.t
@@ -165,8 +168,9 @@ t/use_ok.t
 t/useing.t
 t/utf8.t
 t/versions.t
-t/xt/dependents.t
 t/xxx-changes_updated.t
+t/zzz-check-breaks.t
 TODO
 xt/downstream.t
 xt/downstream_dists.list
+xt/downstream_dists.list.known_broken

MANIFEST.SKIP

@@ -74,3 +74,5 @@
 ^Test-Simple-
 
 .travis.yml
+
+^t2_lib

Makefile.PL

@@ -65,9 +65,10 @@ WriteMakefile(
 
     ($mm_ver >= 6.31 ? (LICENSE => 'perl') : ()),
 
-    PREREQ_PM       => { 
-        'Test::Harness'         => 2.03,
-        'Scalar::Util'          => 1.13,
+    PREREQ_PM       => {
+        'Test2'          => '0.000008',
+        'Test::Harness'  => 2.03,
+        'Scalar::Util'   => 1.13,
         %Prereqs
     },