Rewrite script/build in Python
Rewrite script/build in Python

The script is still Mac-specific, but this will make it easier to add
Windows support later.

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