Implement -[UITableViewHeaderFooterView rac_prepareForReuseSignal]
Extract TestTableViewController
Add test for UITableViewHeaderFooterView+RACSignalSupport
Use dot notation
NSStringFromClass() instead of +description
Remove unnecessary property/implementation
Merge pull request #1040 from ikesyo/uitableviewheaderfooterview

Add UITableViewHeaderFooterView support
Allow nil inner signals when flattening
Merge pull request #1045 from ReactiveCocoa/skip-nil-flattened-streams

Allow nil inner streams when flattening
Hide the fact that we've been dynamically subclassed.

h/t @keithduncan
Test for the class reporting.
Swizzle -methodSignatureForSelector: to claim we implement anything.
Implement a generic version of `-methodSignatureForSelector:`
Remove inclusion of config.h

Other libraries define the HAVE_CONFIG_H condition to include
config.h, such as LibYAML or YAML.framework. When this happens
ReactiveCocoa’s extobjc tries to include its own config.h file which
doesn't
exist. As this doesn’t seem to be used in ReactiveCocoa, we can safely
remove it.
Merge pull request #1061 from Breek/remove_config_h

Remove inclusion of config.h
Fixing RACDynamicSignal.h import
Clarify comments around dynamically implemented `-methodSignatureForSelector:`
Move `objc_msgSendSuper` cast to it’s own line
Merge pull request #1066 from alexfish/fix-dynamic-signal-header

Fixing RACDynamicSignal.h import
Fixed some things.