Merge pull request #20 from calvinjia/master

UI debug
update example.
update pom.xml for sonatype
update tachyon-env.sh.template
Update README.md
update pom.xml
update pom.xml
update pom.xml
add developerConnection into pom.
[maven-release-plugin] prepare release v0.2.0
[maven-release-plugin] prepare for next development iteration
change artifact name, clean code, remove unused code
[maven-release-plugin] prepare release v0.2.0
[maven-release-plugin] prepare for next development iteration
bump the version in tachyon-config.sh
bump the version in Version.java
Update README.md with dependency and release info.
Format readme, add more info.
fix version number in readme.
Autofill version number in each compile