javadoc & comments
using static font
refactoring, added more comment lines
added suffix to show that it's a reference
added javadoc
added reference suffix to gameplay
comment line added
renamed input listener more specific
added comment
some improvements to input handling

#107
stopped keyboard and mouse clicks events by adding new methods

added method „unfocusInputProcessor“ and „focusInputProcessor“ in view.

the controls in the map editor view need some polishing. they are now
only listener8event) based. It would be best to add movement to the
cameras.
increased version string

1.2.21
uses delta times
added reset method for input processors
input processor get's added on entering