Fix #123: Remove redundant dependency 'jersey'

[fuyufjh]

Currently we use jersey-json as a dependency, but actually in java code only one dependency of jersey-json - jettison is being used.

As #123 said, com.sun.jersey:jersey:1.x is an obsolete library and it caused several collision with other libraries (In my case, it breaks RestAPI of Spark). The best solution is to just remove it.

[CLAassistant]

All committers have signed the CLA.

[fuyufjh]

Difference of mvn dependency:tree

Before:

[INFO] +- com.sun.jersey:jersey-json:jar:1.9:compile
[INFO] |  +- org.codehaus.jettison:jettison:jar:1.1:compile
[INFO] |  |  \- stax:stax-api:jar:1.0.1:compile
[INFO] |  +- com.sun.xml.bind:jaxb-impl:jar:2.2.3-1:compile
[INFO] |  |  \- javax.xml.bind:jaxb-api:jar:2.2.2:compile
[INFO] |  |     +- javax.xml.stream:stax-api:jar:1.0-2:compile
[INFO] |  |     \- javax.activation:activation:jar:1.1:compile
[INFO] |  +- org.codehaus.jackson:jackson-core-asl:jar:1.8.3:compile
[INFO] |  +- org.codehaus.jackson:jackson-mapper-asl:jar:1.8.3:compile
[INFO] |  +- org.codehaus.jackson:jackson-jaxrs:jar:1.8.3:compile
[INFO] |  +- org.codehaus.jackson:jackson-xc:jar:1.8.3:compile
[INFO] |  \- com.sun.jersey:jersey-core:jar:1.9:compile

After:

[INFO] +- org.codehaus.jettison:jettison:jar:1.1:compile
[INFO] |  \- stax:stax-api:jar:1.0.1:compile

[fuyufjh]

Anyone helps to review this PR? @tonyxuqqi @dengwu12