Switch to Maven for build

[lintool]

Switch from Ant/Ivy for build and package management.

[cigrainger]

I get a compilation error and build failure now with Maven saying:

[ERROR] COMPILATION ERROR : [INFO] ------------------------------------------------------------- [ERROR] Failure executing javac, but could not parse the error: javac: directory not found: /home/hadoop/Mr.LDA/target/classes Usage: javac use -help for a list of possible options

[INFO] 1 error [INFO] ------------------------------------------------------------- [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3.720 s [INFO] Finished at: 2014-07-02T21:29:34+00:00 [INFO] Final Memory: 13M/208M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile) on project mrlda: Compilation failure [ERROR] Failure executing javac, but could not parse the error: [ERROR] javac: directory not found: /home/hadoop/Mr.LDA/target/classes