Updated gem management to use bundler and rvm
Fixed deprecated rspec configuration, tests passing
Updated Gemfile and lock
Updated diff rake task to work with opendiff, unfolding xml output prior to riffing to make it easier to view changes
Removed legacy gem specifications, should all be in gem spec file now
Minifying prior to recompression
Trying to minifying prior to recompression
Created a working spec for inserting a textfield
Typo on presentation variable name
Utility tweaks
Humanized XML text output, minifying not necessary
Added imagefield support

  - includes specs
  - relationship linkage
  - file uploaded to proper directory
  - generalized base.pptx file