fix mutex

Update readme to deprecate http and include available packages

v1.2.2

* f35b8ab - Restore type information to matched output message
* e494407 - Use %v to print matched argument values
* 38eb60e - http_assertions: regenerate
* adc0360 - http_assertions: fix docs (missing methods)
* 26d6fa0 - More concrete error in Panics and PanicsWithValue
* 1c264b1 - Refactor ObjectsAreEqual()
* 2a15e20 - support diff display for string variables
* ef2d015 - Run generator
* 89226b8 - Compact template
* 6c9d18a - Optimise template
* c679ae2 - add function aliases for common assert and requires function
signatures to make table driven tests easier
* 380174f - Add placeholder example to docs
* 33951ec - Add T object and Test method to Mock
* 20dae58 - mock_test: remove unecessary code
* 4c1331b - Anything: remove unecessary type
* 921da25 - Displaying mismatch information of arguments diff while
panic for closest function call. closes stretchr#556
* 6efb0c4 - Adding url.Values to request RawQuery, fixes 522
* b89eecf - Improve errors from mock assertions
* 0bfbef4 - Modify AssertCalled and AssertNotCalled to give better error
messages
* bfc7630 - Add note about supported go versions to readme
* 662d1e6 - Bump go version to 1.10
* be8372a - Adding logging when mock assertions fails
* a726187 - Fix vim-go integration and other editors
* 8824eb4 - Store CallerInfo when On() is called and print for missing
calls during AssertExpectations.

Docs: Remove superfluous parenthesis

As per stretchr#549 from @larsxschneider

Move from Godep to dep for dependency management

Merge pull request stretchr#327 from jveski/issue-155

Clarify assert.Equal failure message given mismatched numeric types

Merge pull request stretchr#266 from ernesto-jimenez/golint

Fix golint warnings

Merge pull request stretchr#264 from stretchr/issue-263

Fix Backwards Incompatible change to TestingT

Merge pull request stretchr#262 from stretchr/issue-261

Add FailNow back

Merge pull request stretchr#241 from ernesto-jimenez/codegen

Autogenerate code for require and forwarded assertions