This makes it possible for the user to specify their own release name
instead of accepting the generated one.

feat(helm): allow overriding values

Right now, some tests need a Tiller instance, and the WIP for that isn't
done yet. So for now, skip this test.

This supports the `-f` flag for overriding values with a specified
TOML file.

fix(helm): allow TILLER_HOME to be used everywhere

fix(style): fixed minor style issues

Offset where the directories and files go from $HELM_HOME to $HELM_HOME/repository

This refactors handling of the TILLER_HOME and HELM_HOME env vars so
that they can be set once and used everywhere. Individual commands no
longer need to handle setting.

ref(helm): fix helm update

chore(helm): fix flag description

fix(helm): allow user to skip namespace creation

This addresses two issues: #699 and #713. It is now possible to skip
creating namespaces. In additional, a trivial bug was fixed that allows
you to create a custom namespace.

fix(helm): change helm repo list to return error when empty

fix(helm): print err if no repositories to update

fix(helm): update main help text

fix(helm): stop processing if lint can't find a chart

fix(helm): print msg and exit when list has no results

This prints an error if 'helm update' finds no repositories to update.

Following other commands, an empty list should return an error.

This exits with an error code if the path resolution fails to find a
chart.

Print no matches found if none are found

fix(cmd): fix init command description

feat(helm,tiller): improve list output, support filters

Previously, paging used the last release name of the current set to ask
for more results. Now switched to using the first name of the next set.

Not sure I like this method. It makes the user experience more
complicated.

Validate Version in Chart.yaml and parse values.toml for helm limt.

This adds support for filtering list results. Filter strings are
passed from Helm to Tiller, where they are compiled as regular
expressions and executed against the list of releases. Only matching
releases are returned.

Filters are applied before limits and sorts.