Fixing proto dependencies for targets that aren't libraries.

Mark a method with GRPC_OVERRIDE to avoid compiler warning

Create a separate utility for reporting.

Add simple profiling instrumentation for C#

Fix nap condition for pollset wakeup

If:
- one thread issues a kick forcing pollset re-evaluation
- concurrently with a second thread forcing a specific poller to be awoken
And:
- both threads kicks are processed as a single wakeup
Then:
- since we enqueue nothing to the exec_ctx in this situation, we responded to the wakeup by doing another poll until the timeout, ignoring urgent work up the stack

Fix this by flagging that a specific worker was designated to be awoken (since this is a good signal that we really really need to wake up), and use that to still re-evaluate the poll set, but with an immediate deadline so that we fall out of the poll loop as soon as possible.

Fixed potential stack corruption

Bring to master the ObjC documentation changes made for the release.

Make xctool work on the release branch too.

This will hopefully make xctool work on Travis too (cross fingers!)

Add npm, gem and cocoapods badges

Added some file-level comments to Node source files

Add nuget pkg version badge for C#

Bazel like output

Fix for long-running tsan test

Travis for iOS

Split tests into one scheme per test case

Fix RouteGuide example to use the last surface

Prevent XCode 7 from showing spurious warnings

Device builds require code signing, that isn’t set up (they probably
wouldn’t work anyway - I don’t think Travis is attaching devices to
their VMs).