Upgrade Jackson to 2.1.1.
Tidied up the pom.xml
Fixed a bug in the MtGox streaming ticker demo (and uncovered a whole new one)
Merge branch 'XChange-49' of github.com:timmolter/XChange into develop

Conflicts:
	xchange-examples/src/main/java/com/xeiam/xchange/examples/mtgox/v1/service/marketdata/streaming/MtGoxStreamingTickerDemo.java