No bash script needed anymore. Everything is managed through maven.
The new pom at in root folder contains version information and general configuration.
org.scala-ide.build-toolchain is the root of the toolchain part
org.scala-ide.sbt.build is the root of the sdt part
The version numbers of some plugins has been upgraded
The downloaded libs have been moved to the target/lib folders, to simplify the clean up process.
The first time, run './build-all.sh (or './build-all.sh install -P scala-2.10.x' for 2.10) from the root to generate an initial build and install the top pom locally. Then use maven from any project or subproject.
Use the scala-2.10.x profile ('-P scala-2.10.x') to compile the 2.10 version.