Maglev changes for maglev-database-explorer.
Evaluate Smalltalk code.
Added new primitive, moved some primitives to db explorer.
Fixed #311.
RubyHash Smalltalk method name consistency.
Change object security policy for AbstractDictionary and AbstractException.
Merge branch 'master-1.9' of github.com:MagLev/maglev into matthias/database-explorer

Conflicts:
	src/test/vmunit.conf
Merge branch 'master-1.9' into matthias/database-explorer
Install kernel extensions when prims are loaded

Closes #327
Merge pull request #328 from MagLev/johnnyt-openssl

Install kernel extensions when prims are loaded
Merge branch 'master' into matthias/database-explorer

* master:
  Install kernel extensions when prims are loaded
  Add uuid and urlsafe_base64 to SecureRandom
  Remove debug output
  Update download host to seaside.gemtalksystems.com
  Change object security policy for AbstractDictionary, AbstractException.
  Fixed Object#public_send spec failure.
  untag two Symbol#=~ specs
  untag specs for public_send
  add IO.pipe based on FFI
  Added missing . for Object#public_send.
  add rubyio.h so compiling puma C extension works
  Implemented Object#public_send for Rails 4.0.
  Implemented Symbol#=~ for Ruby 1.9.
  Copied mutex_m.rb from MRI.
Merge pull request #329 from MagLev/matthias/database-explorer

Database Explorer
:newspaper: Update build badge url to master

Remove `master-1.9` from the build url - we are just using master now
Add aliases: abort, commit, root

Closes #333
Add closing '>' to IdentitySet#inspect

Closes #334
Merge pull request #335 from MagLev/johnnyt/aliases

Add aliases: abort, commit, root
Add Maglev.[] and Maglev.[]= as accessors for root
Add specs for Maglev#root, #[] and #[]=
Update Maglev #[] and #[]= specs
Merge pull request #337 from MagLev/johnnyt/hash-access

Add Maglev#[] and Maglev#[]= as accessors for #root