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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Don't mix RVs from different resources

Fix deadlock in watch cache

To be compatible with release 1.1, decode Status even if the APIVersion is not set in the response

Print line number of failed link conversion.

Logf() failures for nicer logs

tighten api server installation for bad groups

Move extensions.LabelSelector to unversioned

Use [Feature:ComprehensiveNamespaceDraining] instead of `PIt`

Use kube account to make changes via govc

pod cidr validation

Use defer for IP release

e2e util: Pass region, not zone

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mount teamcity git workspace if running in TC

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Nodes Metrics API - Summary Impl

Move type LabelSelector and type LabelSelectorRequirement from pkg/apis/extensions
This avoids an import loop when Job (and later DaemonSet, Deployment, ReplicaSet)
are moved out of extensions to new api groups.

Also Move LabelSelectorAsSelector utility from pkg/apis/extensions/ to pkg/api/unversioned/
Also its test.
Also LabelSelectorOp* constants.
Also the pkg/apis/extensions/validation functions ValidateLabelSelectorRequirement and
ValidateLabelSelector move to pkg/api/unversioned

The related type in pkg/apis/extensions/v1beta1/ is staying there.  I might move
it in another PR if neccessary.

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