Update module paths

[DavidBruant]

Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/sdkTabToXulTab.js:2:
    require('tabs/utils').
  New path should be:
    require('sdk/tabs/utils')
Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/getSDKTabContentWindow.js:3:
    require('tabs/utils').
  New path should be:
    require('sdk/tabs/utils')
Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/ooiPanelBuild.js:3:
    require('self').
  New path should be:
    require('sdk/self')
Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/ooiPanelBuild.js:2:
    require('tabs').
  New path should be:
    require('sdk/tabs')
Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/ooiPanelBuild.js:6:
    require('tabs/utils').
  New path should be:
    require('sdk/tabs/utils')
Warning: Use of deprecated require path:
  In /home/david/gitRepo/OoI/Firefox/lib/main.js:2:
    require('self').
  New path should be:
    require('sdk/self')

[DavidBruant]

Don't forget to update .d.ts files