0.5.9

• Random is now a module, with static methods that default to the Random::MT19937 class.
• Added Random::ISAAC engine (thanks @ysbaddaden!)
• Added String#size (thanks @zamith!)
• Added limit to all String#split variants (thanks @jhass!)
• Raising inside a Thread is now rescued and re-raised on join (thanks @jhass!)
• Added path option to Projectfile for crystal deps (thanks @naps62!)
• Many fixes towards making Crystal work on linux 32 bits.
• Huge refactors, additions and improvements for sockets: Socket, IPSocket, TCPSocket, TCPServer, UDPSocket, UNIXSocket, UNIXServer (thanks @ysbaddaden!)
• Allow regex with empty spaces in various places.
• Added HTML.escape(String) (thanks @naps62!)
• Added support for %w[...], %w{...}, %w<...> as alternatives to %w(...). Same goes for %i(...) (thanks @zamith!)
• Added Enumerable#min_of, Enumerable#max_of and Enumerable#minmax_of, Enumerable#to_h, Dir.chdir and Number#fdiv (thanks @jhass!)
• Added String#match, String#[], String#[]? and MatchData#[]? related to regexes (thanks @jhass!)
• Allow T::Bar when T is a generic type argument.
• Added subclasses and all_subclasses in macros.
• Now you can invoke to_s and inspect on C structs and unions, making debugging C bindings much easier!
• Added #to_f and #to_i to Time and TimeSpan (thanks @epitron!)
• Added IO.select (thanks @jhass!)
• Now you can use ifdef inside C structs and unions.
• Added include inside C structs, to include other struct fields (useful for composition and avoiding an explicit indirection).
• Added Char#in_set?, String#count, String#delete and String#squeeze (thanks @jhass!)
• Added -D flag option to the compiler to set compile-time flags to use in ifdef.
• More support for forward declarations inside C libs.
• Rewritten some Function primitives in Crystal itself, and added methods for obtaining the pointer and closure data, as well as for recreating a function from these.
• Added a Logger class (thanks @ysbaddaden!)
• Lots of bugs fixed.