Release 2.2.1

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• Added missing bootstrap dep.
• Added bootstrap gems to CodeLoader whitelist.
• Added gems for bootstrapping bundler.
• Merge pull request #2786 from kachick/clean_unsued_spec_tags
• Remove unsued spec tags
• Merge pull request #2784 from kachick/exception-set_backtrace
• Merge pull request #2785 from kachick/update_module-visibility_setters
• Untag passing Module#{module_function,private,protected,public} specs
• Update Module#{module_function,private,protected,public} for eval
• Fix a sharing spec for Module#public with eval
• Remove unused spec tags
• Untag passing Exception#set_backtrace specs
• Fix Exception#set_backtrace for variety of arguments
• Add Exception#set_backtrace specs for weird arguments
• Fix a spec typo for Exception#set_backtrace
• Update CI tags.
• Updated CI specs to RubySpec c48d28a4.

Release 2.2.0

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• Added rubysl-digest dep for building with rbx.
• Added simple release task.
• Switched C-API to default to safe RSTRING.
• Fixed using previous gems configuration.
• Bump configure version because of added Rubygems dependencies
• Merge pull request #2773 from ryoqun/rubygems-without-stdlib
• Fix install error of rubygems without stdlib
• Add implementation for rb_ary_subseq
• Add specs for rb_ary_subseq
• Fix range check for rb_fix2uint
• Fix spec to actually use maximum uint value
• Updated RubyGems to 2.1.10.
• Fixed bundle --path.
• Removed extra check for bootstrap libraries.
• Fixed finding some bootstrap code.
• Added method for loading files required by rubygems.
• Adjusted some gem requirements.
• Fixed handling C++ exception unwinding through NativeMethod call.
• Removed stdlib stubs.
• Ensure that String#match calls Regexp#match
• Add spec for String#match calling Regexp#match
• Don't call IO#pos if no offset is given
• Add spec for not seeking when no offset is given
• Make sure to use a method send and not call a send() method
• Add raising send() method to specs
• Check open state on IO retry
• Fix typo in capi num2int for too-big integers.
• Pass specs for rb_num2uint
• Add specs for negative values and rb_num2uint
• Improve performance for rb_thread_local_* methods
• Fix rb_class2name and rb_class_name for anonymous classes
• Add spec for rb_class2name and rb_class_name for an anonymous class
• Add explicit define for rb_ary_subseq
• Added Gemfile deps for building with rbx.
• Merge pull request #2748 from razielgn/range-improvements
• Improved readability of Range methods.
• Improved readability and performance of Range#step.
• Added benchmark on Range#step.
• Improved specs on Range#initialize.
• Improved specs on Range#exclude_end?
• Merge pull request #2747 from caarlos0/fixes-configure-proxy
• Fixed download of https urls under proxy
• Merge pull request #2745 from anupnivargi/array_shuffle
• Added self to AUTHORS
• Array#shuffle exceptions for invalid range
• Remove all Array#shuffle tags
• Fix the name returned for the current and last method id's
• Use more specific symbol name for ceil macro
• Remove GC attempt when no more fd's are available
• Remove unneccessary gc token tracking in GCData
• Ensure we ceil RBIGNUM_LEN for correct rounding
• Add spec for RBIGNUM_LEN and rounding up
• Merge pull request #2743 from kerchanin/patch-2
• Fix "undefined method `expand' for main:Object" in rakelib/vm.rake.
• Re-add missing . separator in version string.
• Merge pull request #2738 from rubinius/fix-array-slice-with-ranges
• Added self to AUTHORS
• Test Array#slice! on end-exclusive ranges
• Fix Array#slice! when given an end-exclusive range
• Merge pull request #2736 from carlosbrando/add-socket-constants
• Updated all socket constants to be compatible with Ruby 2.1
• Merge pull request #2726 from razielgn/block-argument-destructuring-failing-test
• Used simpler code in named captures.
• Merge pull request #2723 from Mange/named-captures-fix
• Move new MatchData specs to a better location
• Merge pull request #2725 from razielgn/racc-stub
• Make usage of rpath optional
• Updated the version of ./configure.
• Tag failing spec from 37f95dd.
• Add additional spec on block arguments with "_".
• Added standard library racc stub.
• BUG: Return last matching named capture instead
• Add spec for MatchData named capture behaviors in Ruby 1.9-2.1
• Use configured 'make' building runtime gems.
• Added --make option to configure.
• Removed version directory from CI tags.
• Updated MSpec config.
• Update CI tags.
• Fixed Module#define_method spec failing on 2.1.
• Return method name from Module#define_method.
• Removed obsolete deviates block.
• Fail if gem unpack fails.
• Fixed Thread#priority, #priority=.
• Updated MSpec source to 439b4fa1.
• Updated CI specs to RubySpec 47a1fc63.
• Fixed rubinius metagem description.
• Remove now unneeded instance variable from JIT visitor
• Add rb_cDir to C-API
• Add spec for rb_cDir
• Fix building a Range with comparable but no <=> defined
• Add spec for comparable with Range and no <=> method defined
• Cleanup unused function from JIT
• Ensure to run return checks when NULL is returned
• Improve naming for integer conversion methods
• Remove unused method from heap dump
• Small cleanup for method with same functionality
• Free trampoline from fiber stacks when allocated
• Packaging fixes.