Indexing: Exclude paths with .hg folder.

Signed-off-by: ShinYee <shinyee@speedgocomputing.com>
Indexing: Commandline option to print the version.

Signed-off-by: ShinYee <shinyee@speedgocomputing.com>
Build: Initial gem packaging.

Signed-off-by: ShinYee <shinyee@speedgocomputing.com>