fix(helm): fix for issue #680r

details: the host flag for install overrides the
TILLER_HOST env var. If neither are set,
host defaults to ":44134".

feat(tiller): stub in release history

fix(tiller): use correct port in rc spec

This provides the basics for the release history feature that
ReleaseStorage needs to support. The implementation for Memory storage
is only partial.

ref(helm): rename cache file to index file

fix(proto): fix style issues and documentation

fix(make): add protoc target to top Makefile

fix(helm): fix error formatting

This fixes indentation, documentation, and removes unused protobuf
files.

add alias for helm up for helm update

This fixes a number of issues with error formatting and handling in the
client.

Closes #668

fix(*): correct numerous golint errors

* also change additional references to cache to index
* see issue #665

rename remove to delete

feat(pkg): add a timeconv.String function

Rather than do the same formatting repeatedly, we can just call a
convenience function to format to a specific format.

Fix(readme): Add more documentation on getting started.

fix(helm): make install ouput similar to others

feat(helm): add helm update command

Closes #670

fix(helm): improve 'helm get' output

This makes the output of 'helm get' more like the output of other
Helm commands.

This now uses the global verbose flag (instead of a local one) and
formats the output in roughly the same style that 'helm list' and
'helm repo *' use.

feat(tiller): allow specifying namespace on cli

Add client-only flag to helm init that skips installing tiller.

Add search support