Revert "Merge remote-tracking branch 'origin/formatter_options'"

This reverts commit 09cca60880b2ed76c209383e42b384d7fdf57e97, reversing
changes made to eada600987e08ce1fce4191b224a7ab9678ea794.
Adding support for dynamic formatters instead of a dictionary in Reporter.m
updating README.md with notes on workflows for contributing
fix otest-shim crash that can happen with multiple threads

Summary:
This fixes the crashes found by @bgertzfield.  If tests end up spawning
threads that write to stdout or stderr, some bad things could possibly
happen...

1) the emitted JSON could get corrupted since there was no locking or
serialization there.

2) 'test-output' events could get written outside of the 'begin-test' &
'end-test' boundaries.

Let's setup a GCD queue to serialize all of our events.  We'll always
use dispatch_sync so we can be sure the event gets written.
(dispatch_async would work fine in the positive case, but if the tests
caused a crash, we could lose whatever blocks were in the queue)

Test Plan:
Made some tests that spawned ridiculous numbers of threads that
constantly wrote to stdout.  Observed that I could repro the crash
consistently before I applied this change, and then observed it went
away afterwards.
Fix dead store and correct the comment to reflect the actual behavior.
autorelease the Options objects.
Addresses Issue #17: 'begin-test & end-test events should include test class & method names.'
OCUnitCrashFilter synthesized events should include className, methodName

otest-shim now includes 'className' and 'methodName' fields in
'begin-test' and 'end-test' events.
make json-stream emit 'begin|end-ocunit' events, regenerating JSONStreamReporter-runtests.txt
adding Reporter+Testing, some categories to make reporter testing easier.
Reporter for JUnit

Squashed from https://github.com/facebook/xctool/pull/13

Close the file and nil the file handle reference
Cleanup and formatting per @fpotter
Addresses Issue #17: 'begin-test & end-test events should include test class & method names.'
Combine all test suites into a single file.
Fixes buggy XML encoding discovered by @pipelineoptika
Indentation, use Reporter+Testing
Create the intermediate directory if required
adding Known Issues to README
bump to v0.1.1
fixed error when doing -reporter SOME_REPORTER:somefile.txt

If you specified a file but no path (i.e. 'somefile.txt' rather than
'path/to/somefile.txt'), it would show an error...

ERROR: Failed to create folder at ''.

Tested with...

```
./xctool.sh -project xctool/xctool-tests/TestData/TestProject-Library/TestProject-Library.xcodeproj -scheme TestProject-Library test -reporter json-stream:/tmp/b/c/d.txt
```

and

```
./xctool.sh -project xctool/xctool-tests/TestData/TestProject-Library/TestProject-Library.xcodeproj -scheme TestProject-Library test -reporter json-stream:somefile.txt
```
bumping to v0.1.2
Updated my idea of arguments to handle the format; json-stream:arg1=asdf,arg2=asdf
Merge remote-tracking branch 'facebook/master' into development
Merge branch 'dynamic_formatters' into development

Conflicts:
	xctool/xctool/Options.m
	xctool/xctool/Reporter.m
Adding redis pub formatter