Improve progress reporting in naclterm.js
Improve progress reporting in naclterm.js

Report bytes loaded so far and percentage complete.
Also, show text output from naclterm in a cyan to
distinguish it from the program output itself.

Handle and report the absence of PNaCl support.

R=binji@chromium.org

Review URL: https://codereview.chromium.org/47543009

git-svn-id: 84b3587ce119b778414dcb50e18b7479aacf4f1d@944 7dad1e8b-422e-d2af-fbf5-8013b78bd812

kuscsik/naclports,kosyak/naclports_samsung-smart-tv,binji/naclports,Schibum/naclports,adlr/naclports,clchiou/naclports,yeyus/naclports,dtkav/naclports,yeyus/naclports,Schibum/naclports,binji/naclports,Schibum/naclports,Schibum/naclports,Schibum/naclports,kosyak/naclports_samsung-smart-tv,yeyus/naclports,yeyus/naclports,dtkav/naclports,kuscsik/naclports,kuscsik/naclports,kosyak/naclports_samsung-smart-tv,kosyak/naclports_samsung-smart-tv,dtkav/naclports,dtkav/naclports,dtkav/naclports,binji/naclports,kosyak/naclports_samsung-smart-tv,yeyus/naclports,adlr/naclports,yeyus/naclports,kuscsik/naclports,adlr/naclports,clchiou/naclports,Schibum/naclports,clchiou/naclports,binji/naclports,binji/naclports,clchiou/naclports,clchiou/naclports,adlr/naclports,adlr/naclports,kuscsik/naclports