Use current exe's icon as default window icon.
Use current exe's icon as default window icon.

Fixes atom/atom-shell#863.

rreimann/electron,shiftkey/electron,electron/electron,bpasero/electron,Floato/electron,seanchas116/electron,miniak/electron,gerhardberger/electron,tonyganch/electron,rreimann/electron,renaesop/electron,shiftkey/electron,rreimann/electron,wan-qy/electron,gerhardberger/electron,seanchas116/electron,thomsonreuters/electron,seanchas116/electron,bpasero/electron,bpasero/electron,gerhardberger/electron,miniak/electron,thomsonreuters/electron,renaesop/electron,shiftkey/electron,wan-qy/electron,shiftkey/electron,thomsonreuters/electron,electron/electron,miniak/electron,gerhardberger/electron,bpasero/electron,rreimann/electron,the-ress/electron,shiftkey/electron,the-ress/electron,electron/electron,rajatsingla28/electron,wan-qy/electron,miniak/electron,electron/electron,biblerule/UMCTelnetHub,rreimann/electron,wan-qy/electron,tonyganch/electron,the-ress/electron,the-ress/electron,biblerule/UMCTelnetHub,rajatsingla28/electron,Floato/electron,rajatsingla28/electron,tonyganch/electron,seanchas116/electron,Floato/electron,renaesop/electron,the-ress/electron,Floato/electron,the-ress/electron,rajatsingla28/electron,bpasero/electron,wan-qy/electron,rajatsingla28/electron,tonyganch/electron,rreimann/electron,seanchas116/electron,Floato/electron,gerhardberger/electron,thomsonreuters/electron,biblerule/UMCTelnetHub,renaesop/electron,electron/electron,miniak/electron,renaesop/electron,electron/electron,gerhardberger/electron,tonyganch/electron,seanchas116/electron,thomsonreuters/electron,wan-qy/electron,bpasero/electron,shiftkey/electron,rajatsingla28/electron,gerhardberger/electron,renaesop/electron,biblerule/UMCTelnetHub,bpasero/electron,tonyganch/electron,Floato/electron,electron/electron,biblerule/UMCTelnetHub,the-ress/electron,thomsonreuters/electron,biblerule/UMCTelnetHub,miniak/electron