Several changes in MA and SSA views:

* implemented bookmarks for SSA and MA based on controllers (it solves issue #28)

* SSA and MA do not create widgets for input parameters (also advanced options) in agreement with the partial controller design (this solves issue #53)

* SSA and MA continue to implement and support the function _printStandaloneViewCmd() which generates text for creation of the standalone view (issue #28)

* fixed bug #88, if the systemSize or plotLimits are specified (as input parameter) in the controller constructor, the generated bookmark string shows a correct output

* the input parameters of functions multiagent() and SSA() are checked if are correct through the support functions _parse_input_keyword_for_numeric_widgets() and _parse_input_keyword_for_boolean_widgets() (these functions could help issue #14, #5, and #52)

* functions multiagent() and SSA() accept as parameter the 'initWidgets' dictionary where keys are any free-parameter or any other specific parameter, and values are four values as [initial-value, min-value, max-value, step-size]. This is useful to set the initial parameter values (it solves issue #14 for SSA and MA)