Build: Add support for debug logging in dev script.
Utils, Basic: sprint should be in Basic, rather than in I18n.
Debug: Add logging blocks to Runtime and EventTarget.
Merge branch 'log_debug'
XHR: If any headers were set on the object, request appropriate capability (send_custom_headers). Address #99.
Build: Append o compatibility shim from new line.
Build: No point to include moxie.dev.js into the exported archive, since it depends on src/ folder that is not included anyway.