Merge pull request #57 from RMed/master

mailto post helper and Techie update for Nb 4.0.3
Language Catalan
Added option to specify whether comments should be enabled by default

Introduced option comments_enabled which which specifies whether 'allow comments' checkbox will be checked or not when publishing new post
Merge pull request #60 from serpent7776/comments-default-value

Added option to specify whether comments should be enabled by default
Improved Text::clean_url

- use iconv based trasliterate when available; this depends on current
  locale, but should be better than manual translit
Merge pull request #63 from serpent7776/post_slugs

Improved Text::clean_url
Fixed English for changes

from "Changes has been saved" to "Changes have been saved"
Merge pull request #67 from billcreswell/patch-2

Fixed English for changes
Modified sitemap to show all the posts rather than a specific amount set in the RSS settings