Update borschik to 0.2.3
Add 0.5.21 changelog entry
0.5.21
Fix `borschik` usage with freeze and minimize
Fallback to q-fs@0.1.33 to fix bem make tests
Do not depend on `csso` and `uglify-js`
0.5.22
Refactor SvnLibraryNode to avoid copy-paste
Merge pull request #311 from bem/i311

SvnLibraryNode: Ability to map checkout paths to custom directories
A bit more cleaner formatting in BundleNode
Merge pull request #309 from bem/merged-issue306

Magic nodes doesn't link the nodes it creates with parent magic nodes
Update borschik to 0.2.4
0.5.23
Broken link at bem.info for techs (bem/bem-www#36)
ie6.css tech: Don't include bundle.css
ie6.css tech: Don't include bundle.css
Refer correct npm version in the documentation.
Use proper (build) suffixes in MetaNode (close #320)
Use tech.getSuffixes() in MetaNode to build dependencies list (closes #320)
Add socket-only option to make bem server listen only unix socket (closes #316)

- socket-only added
- added a check for specified tcp port value to be a number