have the help more info link track the current release
adding a changelog

Closes #15
remove whitespace when reading version string from files

Closes #16
add some reset functions to the shell on init

These functions allow for resetting the env and triggering
activation messages.  the `rb` cli now calls a reset function when
activating versions to ensure an activation msg is shown each time
it is executed.

The auto mode `cd` override now just calls the activate function
directly.  It should behave more 'silently' and has no need to reset
the env every time a `cd` happens.

Closes #9
-f option to force a specific ruby version file

This overrides the version file lookup and allows you to specify a
version file without having to cd there first.

Closes #13
Merge pull request #21 from redding/next-release

Next release
updates for the move to the "redding" org and some other cleanups

This removes the auto activator tag and just uses the "rb" name.
I updated the README with new install/uninstall URLs and updated
usage/help messages.

This includes a minor fix to `rb -h` as well.
Merge pull request #20 from redding/kr-updates

updates for the move to the "redding" org and some other cleanups
include the release in the local install dir name

This updates the script to rename the downloaded source dir to
include the release so its obvious what release is installed when
looking at the installed source.
Merge pull request #22 from redding/kr-install

include the release in the local install dir name
updating changelog to conform to a convention

Specifically this convention:
https://github.com/tech-angels/vandamme/blob/master/README.md#changelogs-convention
Merge pull request #23 from redding/kr-changelog

updating changelog to conform to a convention
README updates for usage

Removing the output of `rb help` b/c I don't want to maintain it as
I'm changing help and adding new cmds.

Also, updated and reordered/reformatted some Usage sections.
status cmd to print current ruby version and source info

Does just that.  Added appropriate help handling as well.

Closes #1.
Merge pull request #24 from redding/kr-statuscmd

status cmd to print current ruby version and source info
list cmd to show available versions, marking the currently active version

Does just that.  Added relevant help info.

Closes #6.
Merge pull request #25 from redding/kr-listcmd

list cmd to show available versions, marking the currently active version
beta 3 release

* list cmd to show available versions, marking the currently active version (#25)
* status cmd to print current ruby version and source info (#24)
* include the release in the local install dir name (#22)
* `-f` option to specify version files to use (#13)
* reset the env when activating from the `rb` cli (#9)
* remove all whitespace when reading version string from files (#16)
* added a changelog (#15)