faster, bolder, more awesome, rails 4 release

• aggressive cleanup of gem artifacts not needed at run time. 300 to 400% reduction in size by @cpg
• solving bug #1451 by @agmps17
• update bundle, use system bundler to package the gems properly by @cpg
• RAILS_DEFAULT_LOGGER is deprecated, use Rails.logger.error instead by @tmkasun
• Removing webapps code, fix for bug #1398 (duplicate spinner) by @agmps17
• be_true is renamed to be_truthy by @agmps17
• Introducing hda_access for apps using other kind of templates by @agmps17
• Changes based on the generic conf by @agmps17
• bundle update, using our the_for_rails, update .ruby-version by @cpg
• conflicting routes with webapps by @agmps17
• Allowing name ans webapp id as attribute accesible by @agmps17
• update opensearch icon to current logo by @cpg
• cleanup - removal of unused file by @cpg
• update app description, truncation. fixes bug #1397 by @cpg
• Adding changes to allow migration in plugins. by @agmps17
• Debug Page for production, typo as development by @agmps17
• Allowing plugins to be added as a submenu of existing tab by @agmps17
• Adding Back Debug Page by @agmps17
• Stray message markup, and search hda routes corrected by @agmps17
• Adapting plugin generator to rails 4. route definition changed. by @agmps17
• use settings_engine.themes_path for themes' url by @agmps17
• Adding changes for port to rails 4 by @agmps17
• switch to ruby 2.0.x because that is the default on potential distros by @cpg
• Rails 4 port by @agmps17
• update the gem bundle to the latest by @cpg
• for some reason, "plugin" does not work inside the instance methods. by @cpg
• do not lose the configuration path used by the plugin by @cpg
• latest plugin system bits -- works with basic plugins by @cpg
• white space cleanup by @cpg