Updated latest strings

Updated latest strings
Merge pull request #143 from Arkkis/patch-20

Updated latest strings
Switch event api to plugin export c-style calls. Virtual-function calls too fragile.
Removed previewOnly given it is available through OBSGetPreviewOnly.
Added support for systray (Windows Notification Area) icon. Modified the default OBS icon (added a red dot) to signal running state (broadcasting, previewing, etc). Added two General Settings options for displaying the Notification Area icon and minimizing to it.