Split out the graphs for EP and FT that are most important to us (largest that run)
Significant refactoring (mostly expansion) of graphs in the perf tracking suite

I added a bunch of graphs to the perf tracking suite that I think we should be
paying attention to (and removed one):

* EP Stream -- I took the version that has --local and --no-local results
  though I think all our stream graphs should be condensed down to 1-4
  and don't understand the relationship between this graph and the release
  version (TODO)

* Removed Global stream w/ promotion -- because the global stream graph we
  use subsumes this info

* added HPCC RA and HPL : the first because it's important to us; the
  second because it's fairly stable and interesting; FFT could also have
  been added, but it seems less stable (and is arguably less "the way
  we'd like to do it"

* added thread-ring and pidigits -- the former is now less noisy with
  qthreads; the latter is now interesting with GMP on in the nightly
  testing

* added NAS EP B, FT A, and IS S -- all of these need more eyes on them
  to make sure they're as we like them; but in the meantime they're
  fairly noise-free

* added many array performance tests -- I looked for ones that looked
  fairly noise-free; I think that maintaining/improving performance for
  these is key, so thought they were worth a look

* dynamic iterator -- of the various advanced iters, I chose this one
  because it's the one we use most commonly and because it had some
  interesting changes lately.

* various scalar idiom C vs. Chapel comparisons -- again, these will
  be key to performance and they're fairly noise-free

* compilation time -- grabbed this just so we have some sense of
  overall compiler performance from week-to-week without bringing
  up Elliot's full suite -- this can serve as a canary to look there.

* memory leaks for examples -- this is something else I'd like to keep
  an eye on.  I could imagine taking one graph from this suite, but
  didn't put in the time to split the one I liked off (probably memory
  leaks for examples)

* jacobi AST/generated code size -- something else worth tracking

* no-op -- maybe not worth tracking, but I wanted to err on including
  it.
Cleaned up the parsing of intent_expr

There was a small bug in how intent_expr was parsed. While here I
cleaned up the rest of it based off some feedback from Brad.
Update one last test to the new task intent syntax
Merge pull request #302 from bradcray/updatePerfSuite

Update to graphs in performance tracking suite

[effectively reviewed in the performance team meeting; OK'd by lydia by email]

It's been a long time since we considered which graphs are
in the performance graphing suite.  Here, I did a refresh
on them for my performance triage week as follows:

* EP Stream -- I took the version that has --local and --no-local results
  though I think all our stream graphs should be condensed down to 1-4
  and don't understand the relationship between this graph and the release
  version (TODO)

* Removed Global stream w/ promotion -- because the global stream graph we
  use subsumes this info

* added HPCC RA and HPL : the first because it's important to us; the
  second because it's fairly stable and interesting; FFT could also have
  been added, but it seems less stable (and is arguably less "the way
  we'd like to do it"

* added thread-ring and pidigits -- the former is now less noisy with
  qthreads; the latter is now interesting with GMP on in the nightly
  testing

* added NAS EP B, FT A, and IS S -- all of these need more eyes on them
  to make sure they're as we like them; but in the meantime they're
  fairly noise-free

* added many array performance tests -- I looked for ones that looked
  fairly noise-free; I think that maintaining/improving performance for
  these is key, so thought they were worth a look

* dynamic iterator -- of the various advanced iters, I chose this one
  because it's the one we use most commonly and because it had some
  interesting changes lately.

* various scalar idiom C vs. Chapel comparisons -- again, these will
  be key to performance and they're fairly noise-free

* compilation time -- grabbed this just so we have some sense of
  overall compiler performance from week-to-week without bringing
  up Elliot's full suite -- this can serve as a canary to look there.

* memory leaks for examples -- this is something else I'd like to keep
  an eye on.  I could imagine taking one graph from this suite, but
  didn't put in the time to split the one I liked off (probably memory
  leaks for examples)

* jacobi AST/generated code size -- something else worth tracking

* no-op -- maybe not worth tracking, but I wanted to err on including
  it.


In support of the NPB changes above, I split the sizes we care about
out from the .graph files that contained multiple sizes.
Merge pull request #303 from Kyle-B/task-intent-fixes

Clean up how intent_expr is parsed

There was a small bug in how intent_expr was parsed. While there I cleaned up the rest of it based off some feedback from Brad.

Updates one more test that slipped through with the old task intent syntax.