Update docs: dict-merge and dict-merge-delete-value
Update docs: better wording
Update docs: add dict->curly-string
Merge pull request #44 from cmpitg/update-doc-dict-utils

Update documentation - some dict utilities
Change error for { }
Tweak code print for time*
Add rackjure/base

This is only racket/base plus the custom #%app.
Tidy requires and provides.
Bump to v0.7
Add rackjure/base and bump to v0.7