Merge pull request #21 from ljwolford/bugs

added email contraint on sign up
Merge pull request #22 from ljwolford/bugs

Bugs
Merge pull request #23 from ljwolford/bugs

included comp search ability-remember to add index to title in comp coll...
Update README.md

added index
Merge branch 'master' of https://github.com/adlnet/xci into bugs