added .DS_Store to gitignore for pushes from mac
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout
MAHOUT-1571: Functional Views are not serialized as dense/sparse correctly

This closes apache/mahout#9

Squashed commit of the following:

commit 584e2e31e2ac23f75bec0a04e8a7168b8d74577b
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Tue Jun 10 10:46:17 2014 -0700

    Adding test

commit ef271380e16192b55c31c7b219195d6982587206
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Wed Jun 4 14:43:24 2014 -0700

    initial fix (?)
MAHOUT-1572: blockify() to detect (naively) the data sparsity in the loaded data

This closes apache/mahout#10

Squashed commit of the following:

commit cc93dedcad0b6ff0365f8e15dba280221a0a64f0
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Tue Jun 10 11:27:38 2014 -0700

    + tests

commit 07180efbfa4472f7d13a2afe1f8f37e18edfe08e
Merge: 162c5ca 907781b
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Tue Jun 10 11:04:51 2014 -0700

    Merge branch 'master' into MAHOUT-1572

commit 162c5ca36e00af91a9599075332c577d9b1a13c4
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Wed Jun 4 15:10:11 2014 -0700

    initial fix (?)
(NOJIRA) shell -- context cleanup (Anand Avati via dlyubimov)

This closes apache/mahout#15

Squashed commit of the following:

commit 0407577bff365028ceef9798d5835f12a81bc941
Author: Anand Avati <avati@redhat.com>
Date:   Mon Jun 9 22:05:14 2014 -0700

    MAHOUT-1529: spark-shell - cleanup sdc

    Renaming @sc to @sdc has left open the shutdown part. Spark
    depends on 'implicit sc' to be set by the shell invoker.

      mahout> Stopping spark context.
      <console>:29: error: not found: value sc
                    sc.stop()
                    ^

    So override sparkCleanUp() and call @sdc.stop()

    Signed-off-by: Anand Avati <avati@redhat.com>
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout
MAHOUT-1578 Optimizations in matrix serialization (ssc) closes apache/mahout#16
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout
MAHOUT-1464 Cooccurrence Analysis on Spark (pat) closes apache/mahout#12
MAHOUT-1464 fixed bug counting only positive column elements, now counts all non-zero (pat) closes apache/mahout#18
MAHOUT-1581 - Increase timeouts to avoid false positives.
MAHOUT-1580 Optimize getNumNonZeroElements() closes apache/mahout#17
MAHOUT-1573: More explicit parallelism adjustments in math-scala DRM apis; elements of automatic parallelism management

This closes apache/mahout#13.

Squashed commit of the following:

commit de03a6aa8361424ee8fb776f995fbe1b811e0ccd
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Wed Jun 18 14:22:46 2014 -0700

    doc

commit f399f7a4dc61905ef05d9944dbd2e5a4c31a654b
Merge: b02cf18 45d8803
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Wed Jun 18 14:18:35 2014 -0700

    Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout into MAHOUT-1573

commit b02cf18dac608e2f969a845efd7ee35a3a5bd0e0
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Wed Jun 18 14:18:03 2014 -0700

    switching to par(...) api

commit 06bb4bcdedb3c5aac50a44ddec3957f1ed12d808
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 23:05:12 2014 -0700

    pom fixes to fix tests (spark hadoop dependencies must precede that of mahout-math's for tests to run correctly)

commit 1e6e3f87ffab5897569fea94c643da2bdbb59e33
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 22:15:33 2014 -0700

    remove any special handling of Par in rewrites

commit 2f3b4f5bac901ec152453473d4982cb9b6e5d651
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 16:33:27 2014 -0700

    + auto_|| operator

commit 2733002f4b5db3d5114a440b03967d954a3738e9
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 15:56:26 2014 -0700

    explicit parallelism adjustment levers exact_|| and min_||

commit cf7f18b4af4ad043d2bdcefeeda15031fa018543
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 13:21:19 2014 -0700

    docs

commit 2f785109b9a52e748626ba46f5bc0a35ffc98e2c
Author: Dmitriy Lyubimov <dlyubimov@apache.org>
Date:   Fri Jun 6 13:02:11 2014 -0700

    Refactoring drmFromHDFS()
MAHOUT-1565 Remove mapreduce-job-specific MAHOUT_OPTS (nishkamravi via gcapan): this closes apache/mahout#4
MAHOUT-1561, MAHOUT-1568, MAHOUT-1569 text-delimited Spark readers and writers with drivers and a CLI for 'spark-itemsimilarity' closes apache/mahout#22
disabled ItemSimilarity test until we can work out how to run them without MAHOUT_HOME and SPARK_HOME being set
MAHOUT-1541, MAHOUT-1568, MAHOUT-1569 fixed a build test problem, drivers have an option new to not search for MAHOUT_HOME and SPARK_HOME
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/mahout
MAHOUT-1541 backed out compatability with legacy Item Similarity, now outputs raw LLR scores