* helm-misc.el: Issue #184 Speedup loading by moving unrelated library to helm-files.el.
Don't require *buffers and *files anymore.
* helm-config.el: Issue #184 Move `helm-minibuffer-history-key' from helm-misc.
* helm.el (helm-read-pattern-maybe): Issue #172 Limit `helm-input-idle-delay' to 0.1.
* helm-files.el: Make find working when resuming.
* helm-files.el: Integrate find in helm-find-files.