upgraded jersey dependency version in pom.xml file
added check on fields for ParamBuilder class
added comments to ParamBuilder class methods
added comments to ParamBuilder.Builder class method
added comments to ParamBuilder.Builder class method
added comments to ParamBuilder.Builder class method
added comments to ParamBuilder.Builder class method
added comments in ParamBuilder.Builder.build method
added comments on ParamBuilder class method
added comment on ParamBuilder class method
added comment on ParamBuilder class method
added comment on ParamBuilder class method
added comment on ParamBuilder class fields
improved order of fields in ParamBuilder class by initialization
removed unused field from RestUtils class