Retry SSH connection for E2E log gathering.

add a HasSynced() for DeltaFIFO and FIFO, method, which is very helpful for Informer

componentconfig: move kube proxy defaulting into the exetrnal api

fix version detection for error

Support master on Ubuntu Trusty

rename release_1_2 to internalclientset

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kubectl add show-labels flag to make it more readable

Cleanup borrowed conversion functions.

Revert "Deprecate HostConfig at container start"

Revert "Disable flaky test."

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Moving /apis handler to generic api server

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Also update existing documentation and try to steer users away from 'host'.
Add validation.

Recycle controller tries to recycle or delete a PV several times.
It stores count of failed attempts and timestamp of the last attempt in
annotations of the PV.

By default, the controller tries to recycle/delete a PV 3 times in
10 minutes interval. These values are configurable by
kube-controller-manager --pv-recycler-maximum-retry=X --pvclaimbinder-sync-period=Y
arguments.

Fix generated api-reference-docs

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Bump heapster from v0.20.0-alpha3 to v.0.20.0-alpha4

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This commit fixes a few typographical and wording nits, adds formatting
for keywords where appropriate, and tweaks punctuation for clarity

In pkg/apis/extensions/v1beta1/conversion.go,
some conversion code was copied from the
legacy api because Pod conversions cannot be
automatically generated because of something
about deprecatedServiceAccount.

This PR fixes two problems due to that copying.

First, the copied code could drift from its source
To fix that, I replaced the Convert_api_ and Convert_v1
implementations with a call to the original function.
I left a wrapper in case something needed to have
a package-local function name.

Second, the copied Convert_* functions, were copied,
in a way that they refer to other conversion functions
that aren't in the current package.  This prevented
genconverion from working from a clean start
(no conversion_generated.go).  Perhaps the person
who wrote this in the first place had copied
the conversion_generated.go file from legacy,
so it worked.   So, I added the v1
package name to calls to Convert_* functions.
So, when someone Cargo-Cult copies the conversion.go
file, like I did, they now will not have to
wonder why genconversion complains about missing
Convert_ functions.

Deleted the conversion_generated.go and reran genconversion
and it worked, no diffs old vs new conversion_generated.go.

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