And update docs to match

.gitignore

@@ -4,7 +4,7 @@
 *.iml
 *.iws
 .idea/
-.sbtlib/*.jar
+sbt/*.jar
 .settings
 .cache
 /build/

README.md

@@ -15,7 +15,7 @@ This README file only contains basic setup instructions.
 Spark requires Scala 2.10. The project is built using Simple Build Tool (SBT),
 which can be obtained [here](http://www.scala-sbt.org). To build Spark and its example programs, run:
 
-    ./sbt assembly
+    ./sbt/sbt assembly
 
 Once you've built Spark, the easiest way to start using it is the shell:
 
@@ -41,7 +41,7 @@ locally with one thread, or "local[N]" to run locally with N threads.
 Testing first requires [Building](#Building) Spark. Once Spark is built, tests
 can be run using:
 
-`./sbt test`
+`./sbt/sbt test`
  
 ## A Note About Hadoop Versions
 

sbt/sbt

@@ -5,7 +5,7 @@
 SBT_VERSION=0.12.4
 URL1=http://typesafe.artifactoryonline.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/${SBT_VERSION}/sbt-launch.jar
 URL2=http://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/${SBT_VERSION}/sbt-launch.jar
-JAR=.sbtlib/sbt-launch-${SBT_VERSION}.jar
+JAR=sbt/sbt-launch-${SBT_VERSION}.jar
 
 printf "Checking for system sbt ["
 if hash sbt 2>/dev/null; then