Add support for building against hadoop2-yarn : adding new maven profile for it
Don't pull in old versions of Jackson via hadoop-core
Reversed the order of tests to find a scala executable (in the case when SPARK_LAUNCH_WITH_SCALA is defined): instead of checking in the PATH first, and only then (if not found) for SCALA_HOME, now we check for SCALA_HOME first, and only then (if not defined) do we look in the PATH.  The advantage is that now if the user has a more recent (non-compatible) version of scala in her PATH, she can use SCALA_HOME to point to the older (compatible) version for use with spark.

Suggested by Josh Rosen in this thread:

  https://groups.google.com/forum/?fromgroups=#!topic/spark-users/NC9JKvP8808
Update quick-start.md heading on Operations (not just Transformations).
Merge pull request #565 from andyk/master

Update wording of section on RDD operations in quick start guide in docs
Fix compile error
Merge pull request #564 from maspotts/master

Allow latest scala in PATH, with SCALA_HOME as override (instead of vice-versa)
Merge pull request #558 from ash211/patch-jackson-conflict

Don't pull in old versions of Jackson via hadoop-core
Checkpoint commit - compiles and passes a lot of tests - not all though, looking into FileSuite issues
Checkpoint commit - compiles and passes a lot of tests - not all though, looking into FileSuite issues
Fix issue with FileSuite failing
Make ShuffledRDD.prev transient
Commit job to persist files
Use hostname instead of hostport for executor, fix creation of workdir
Fix bug with atomic update
Fix npe
Scala does not prevent variable shadowing ! Sick error due to it ...
Fix exception when checkpoint path does not exist (no data in rdd which is being checkpointed for example)
remove spurious debug statements
Increase ReservedCodeCacheSize for sbt