Linkscape Ruby Gem updated to 0.3.0

[Martin Tithonium]

I've just released an update of the Linkscape gem, pushing it to
version 0.3.0.

It adds support several new fields that have been added to the API
recently, as well as adding several 'calculated' fields - fields that
aren't part of the api itself, but which can be derived from fields
that are: internal link counts, unfollowed link counts, etc. You can
request those fields (as :cols arguments, etc), and the gem will
convert it into a request for the fields that are needed to compute
it.

Here's a list of the newly added field names:

* :all_external_links
* :cblocks_linking
* :fq_domain_all_external_links
* :fq_domain_external_mozrank_sum
* :fq_domain_internal_links
* :fq_domain_juice_fq_domains_linking
* :fq_domain_juice_internal_links
* :fq_domain_juice_links
* :fq_domain_juice_pl_domains_linking
* :fq_domain_unfollowed_external_links
* :fq_domain_unfollowed_fq_domains_linking
* :fq_domain_unfollowed_internal_links
* :fq_domain_unfollowed_links
* :fq_domain_unfollowed_pl_domains_linking
* :internal_links
* :ips_linking
* :juice_cblocks_linking
* :juice_fq_domains_linking
* :juice_internal_links
* :juice_ips_linking
* :juice_pl_domains_linking
* :pl_domain_all_external_links
* :pl_domain_cblocks_linking
* :pl_domain_external_mozrank_sum
* :pl_domain_internal_links
* :pl_domain_ips_linking
* :pl_domain_juice_cblocks_linking
* :pl_domain_juice_internal_links
* :pl_domain_juice_ips_linking
* :pl_domain_juice_links
* :pl_domain_juice_pl_domains_linking
* :pl_domain_unfollowed_cblocks_linking
* :pl_domain_unfollowed_external_links
* :pl_domain_unfollowed_internal_links
* :pl_domain_unfollowed_ips_linking
* :pl_domain_unfollowed_links
* :pl_domain_unfollowed_pl_domains_linking
* :unfollowed_cblocks_linking
* :unfollowed_external_links
* :unfollowed_fq_domains_linking
* :unfollowed_internal_links
* :unfollowed_ips_linking
* :unfollowed_links
* :unfollowed_pl_domains_linking