Changes default directory to "."

Bump to 0.2.10.

Updates default path for bin/replace.js as well.

Changes default directory to "."

Bump to 0.2.10.

Updates default path for bin/replace.js as well.

Adds helpful default behavior.

Detect if no flags or paths were defined.  If so, search recursively
under the current directory.

Improves a comment.
version to v0.3.0