Fix strong properties with mutable variants to be copy
Copy copied properties in -init
Remove existing header key before setting new one

This ensures that case of headers is preserved. NSMapTable reuses old keys that are equivalent
Use isolation queues to protect accounting collections
Add comments about use of isolation queues/write barriers
Merge pull request #13 from prachigauriar/umkmockurlprotocol-isolation-queues

Use isolation queues to protect accounting collections
Prep for 1.1.1 release
Merge pull request #14 from prachigauriar/dev

Dev
Update readme for 1.1.1
Transfer ownership to Two Toasters
Make sure we don't duplicate source files in subspecs
Merge pull request #17 from twotoasters/resolve-duplicate-headers-in-podspec

Make sure we don't duplicate source files in subspecs
Fix bug where double-& in query parameters can't be parsed
Remove spurious newline
Update podspec to 1.1.2
Update README and podspec
Update README with missing references to 1.1.2
Add UMKAssertTrueBeforeTimeout macro and fix warning re: unused variable
Revert change from URLMock 1.1.2 that breaks param values that are non-strings
Merge pull request #19 from twotoasters/add-UMKAssertTrueBeforeTimeout-macro

Add UMKAssertTrueBeforeTimeout macro and fix unused variable warning