half way through fixing the conditional property panel to allow specifying conditions on different types.
half way through fixing the conditional property panel to allow specifying conditions on different types.

event handler code still left to do

refs #132

citation-style-editor/csl-editor,citation-style-editor/csl-editor,fbennett/csl-editor,adam3smith/csl-editor,adam3smith/csl-editor,citation-style-language/csl-editor,fbennett/csl-editor,citation-style-language/csl-editor,adam3smith/csl-editor,citation-style-editor/csl-editor,citation-style-language/csl-editor