Max zooming till cover all the markers. Added tool-tip to markers and plotting of different marker Icons (based on their text note).

**Maximum zooming to cover all the plotted markers** - 
 > Now map will automatically zoom to maximum level. So that user need not need to zoom to their desired location. Previously this behavior was fixed and map was giving Asia-Europe view.


**Added tool-tip to markers and plotting of different marker Icons (based on their text note)** : 
 - Added tool-tip for markers to show associated text-note.
 - Using plugin to plot different markers.
 - If marker contains text-note then ```i``` logo will appear in the marker else plain marker will be plotted.