Update apps.html

Added a link to the Filter Settings page to make sure users know what parameters must be used when updating filters.
Merge pull request #253 from kunal732/develop

Added IOS Library into Docs
breadcrumb fixes
real breadcrumb fixes
breadcrumbs fix (final)

jekyll is haaaard
better description

Removes a lot of duplicate descriptions, as snippetting will be way
better.
added cannonical
removed keywords
added seo overrides
added examples to most filters
Added Laravel config instructions
Some better formatting and some demo code
Fixed the file extension
Fixed my format derp
added canonical seo override
Merge pull request #255 from sendgrid/filter-update

added examples to most filters
Merge pull request #256 from ws/develop

Added Laravel integration docs
Merge branch 'patch-2' of github.com:jaysonsperling/docs into jaysonsperling-patch-2
move note to info block
change href to relative