Updated build instructions
Not needed to pull in Foundation that way at this time.
Added offsite icons for non-local links
Updated Font Awesome files and templates using font awesome.
Merge pull request #53 from yeastgenome/update-readme

Updated build instructions
Merge pull request #56 from yeastgenome/ext-links-2356

Ext links 2356
Merge pull request #57 from yeastgenome/font-awesome-4-upgrade-2544

Updated Font Awesome files and templates using font awesome.
Merge branch 'integ' into foundation5-update-2298

Conflicts:
	config.rb
	sgdfrontend/static/scss/style.scss
	sgdfrontend/static/scss/vendor/font-awesome/_core.scss
	sgdfrontend/static/scss/vendor/font-awesome/_extras.scss
	sgdfrontend/static/scss/vendor/font-awesome/_icons.scss
	sgdfrontend/static/scss/vendor/font-awesome/_mixins.scss
	sgdfrontend/static/scss/vendor/font-awesome/_path.scss
	sgdfrontend/static/scss/vendor/font-awesome/_variables.scss
	sgdfrontend/templates/interaction_overview.jinja2
	sgdfrontend/templates/interaction_snapshot.jinja2
	sgdfrontend/templates/interaction_table.jinja2
	sgdfrontend/templates/literature_details.jinja2
	sgdfrontend/templates/literature_overview.jinja2
	sgdfrontend/templates/literature_snapshot.jinja2
	sgdfrontend/templates/phenotype_snapshot.jinja2
	sgdfrontend/templates/phenotype_table.jinja2
	sgdfrontend/templates/regulation_details.jinja2
	sgdfrontend/templates/regulation_overview.jinja2
	sgdfrontend/templates/regulation_snapshot.jinja2
	sgdfrontend/templates/regulation_table.jinja2