added broadcast outboundCall. Added DialogObject
added EventType enum. and a ModelBase class to inherit toJson() methods
in all Model classes
Add event function .
remove unnecessary in Add Event.
Merge pull request #4 from vrspider/develop

Add event function .
Add getter
added senderName to outboundCall api
Merge branch 'develop' of https://github.com/askfast/askfast-api-java
into develop

Conflicts:
	pom.xml
	src/main/java/com/askfast/askfastapi/AskFast.java
	src/main/java/com/askfast/askfastapi/model/Answer.java
	src/main/java/com/askfast/askfastapi/model/AnswerPost.java
	src/main/java/com/askfast/askfastapi/model/EventCallback.java
	src/main/java/com/askfast/askfastapi/model/EventPost.java
	src/main/java/com/askfast/askfastapi/model/Question.java
	src/main/java/com/askfast/askfastapi/util/HttpUtil.java
fixed minor bugs with formatting URL. 
changed MediaHints to MediaProperties
Again add getParams
add params argument to AskFast constructor
Merge pull request #5 from 3r1k/develop

add params argument to AskFast constructor
update jackson library
Change the dh path
updated EventPost with extras object. Can be used to pass any additional
info in the events. E.g. timestamps of calls
added subject param to outbound call. used only by the email servlet
made the outbound calls, backward compatible
changed enum types of media property.
added latest jar to bin folder
addMediaProperty() to Askfast