1.1.2: Interop fix with xp-forge/partial

• Fixed issue #15: Interop with xp-forge/partial broken - @thekid

1.1.1: Map initialization fix

• Fixed map initialization with keys consisting of complex expressions
  (@thekid)

1.1.0: Traits

• Implemented trait usage, including aliasing via as. See issue #14
  (@thekid)

1.0.0: Parameter annotations

• Indexed type members by name; implementing feature suggested in #10
  (@thekid)
• Heads up: Implemented syntax for parameter annotations as stated
  in issue #1 - alongside the parameter; no longer in its "targeted" form
  $param: inject as in xp-framework/rfc#218
  (@thekid)
• Added support for keywords as methods in PHP 5.6 - @thekid
• Implemented xp-framework/rfc#326: Cast and nullable types - @thekid
• Added support for casting value and array types - @thekid

0.9.1: Promoted arguments fix

• Fixed promoted argument types not being recorded - @thekid

0.9.0: Types

• Added support for $arg ==> $arg++ lambdas without argument braces
  (@thekid)
• Fixed issue #8: Member types missing for constructor argument promotion
  (@thekid)
• Fixed issue #7: Ternary operator broken - @thekid
• Fixed issue #6: instanceof does not resolve class names - @thekid
• Implemented support for union types, e.g. int|float, as supported
  by this PHP RFC
  (@thekid)
• Implemented array<int> and array<string, string> as well as
  function types (e.g. (function(int, string): string)) as seen in
  Hack's type system
  (@thekid)

0.8.0: Line numbers

• Ensured line numbers are kept; this is important for tracing
  warnings, errors and exceptions.
  (@thekid)

0.7.0: Parameter annotations

• Improved function, closure, lambda and method node layouts - @thekid
• Fixed closures not being able to use by reference - @thekid
• Implemented parameter annotations via $param: inject - @thekid

0.6.0: Lambda capturing

• Ensured types are checked where natively supported - @thekid
• Implemented capturing locals in lambda expressions - @thekid
• Recorded property types in cached meta data - @thekid
• Implemented support for dynamic new via new $type- @thekid
• Fixed assignment operator - @thekid
• Fixed parameter types - @thekid
• Fixed annotations not having access to class scope - @thekid
• Fixed constant emittance in PHP 7.1+ - @thekid
• Fixed trait declaration - @thekid
• Fixed issue #3: Annotations in package - @thekid
• Fixed issue #4: "xp compile" installation - @thekid

0.5.0: Scope defines cleanup

• Removed unused scope defines - @thekid
• Fixed endless loop for unclosed argument lists - @thekid
• Fixed type annotations not being parsed - @thekid