Related data constraint fixes
Merge pull request #95 from lemonde/lmd-constraints

Related data constraint fixes
minor formatting tweaks
alias withRelated tables, fixes #96
Merge branch 'fix-#97' of github.com:benesch/bookshelf into benesch-fix97

* 'fix-#97' of github.com:benesch/bookshelf:
  Parse eager-loaded models after pairing; fixes #97
  Add test cases for #97 - failed eager loading on parsed models
test for morphTo parse, relation code cleanup
linking to docs for several Backbone methods, fixes #81
document columns option on fetch, fixes #100, #106
docs updates for 0.5.8
release 0.5.8
merging bluebird branch
using Promise.method throughout the library
swapping out underscore for lodash
Promise.method on eager fetch
bumping knex dep, updating Relations test output
updating docs for 0.6.0
release 0.6.0
minor docs update
more minor documentation tweaks
doc tweaks for linking faq's