Ensures links to doc root in --include docs point to correct place

The template had a fixed relative link to the doc index as ../index.html
which breaks for included docs. A fixed link cannot be used because
the directory structure of included documentation is preserved.

We add a new string to the page dictionary which generates the correct
relative link (in the same way the CSS links are created). This is used
instead of the fixed link.

Fixes: #324
Merge pull request #350 from sammyd/master

Fixes links to doc index in companion documentation
Reverting from GitHub flavored Markdown compiler. Fixes #341.

Seems like `gfm_string()` doesn't parse `> %class%` at all (possibly uses `MKD_NODIVQUOTE` flag internally). Until that is cleared, I'm reverting to old implementation!
Fixed typo for failed generation message. Closes #334.
Initialize `formats` variable
Merge pull request #353 from robertmryan/master

`GBPublishedFeedFormatsFromNSString` should initialize `formats`
Added a new option to change the default alphabetical order of instance methods to the code order.
Merge pull request #357 from fbernardo/master

Adding an option to disable the alphabetical order on instance methods
Fix link content duplication when links are embedded inside other links

When a link falls within another link, such as a URL string within a method call, processing both would result in the processed URL being appended to the processed method call, duplicating the text from the URL. Instead, keep track of the links processed, and ignore a link if it's inside of a previously processed link.

Here's a test case which illustrates the problem:

```objc
/**
`NSURL *baseURL = [NSURL URLWithString:@"http://example.com/v1/"]`
*/
@interface Fooclass : NSObject
@end
```

Result:

```html
<p><code>NSURL *baseURL = [NSURL URLWithString:@"http://example.com/v1/"]</code>http://example.com/v1/<code>"]</code></p>
```

With patch:
```html
<p><code>NSURL *baseURL = [NSURL URLWithString:@"http://example.com/v1/"]</code></p>
```

The test case does indeed cover this problem but certainly could be improved.
Merge pull request #359 from paulmelnikow/fix_urls_in_code_spans

Fix link content duplication when links are embedded inside other links
Test suite: Fix compilation error

The cast to `__va_list_tag *` fails with an error on my system (OS X 10.8.4, Xcode 4.6.3). I've tried several other possibilities and was unable to find a way to make the cast in a way that does build. So, I removed it, and suppressed the warning.

Faking out a va_list is kind of dirty to begin with, so I think suppressing this warning is okay.

If there's a better fix I'd be happy to use that instead!

```
GBObjectsAssertor.m:215:103: error: use of undeclared identifier '__va_list_tag'
                        [self assertCommentComponents:argument.argumentDescription matchesValues:firstExpectedComp values:(__va_list_tag *)argList];
                                                                                                                           ^
GBObjectsAssertor.m:215:118: error: expected expression
                        [self assertCommentComponents:argument.argumentDescription matchesValues:firstExpectedComp values:(__va_list_tag *)argList];
```
Fix array bounds crash in -processAvailabilityBlockInString

Fixes #349 and failing test case:
```
GBCommentsProcessorRegistrationsTesting
testProcessCommentWithContextStore_combinations_shouldRegisterMethodDescriptionBlock
```
docsetFeedFormats is not a string

Remove support for templates in `--docset-feed-formats` option, which is not necessary and does not work. Write a proper test case that does not crash. Fix compiler warnings on conversion of enum to id.
Fix crash when setting --xcrun-path or --docset-xml-filename

These items aren't properly capitalized by DDGetoptLongParser and result in a KVC exception.

This is a somewhat dirty way to handle this, but the other option I see is to rename the instance variables to use DDGetoptLongParser's capitalization, which doesn't seem better.
Apply recommended warnings for Xcode 4.6
Fix placeholder replacement test case
Merge pull request #360 from paulmelnikow/fix_test_case_build

Test suite: Fix compilation error
Merge pull request #361 from paulmelnikow/fix_tests

Fix failing test cases