Bootstrap 2 is deprecated, so we should move to Bootstrap 3
updated to bootstrap V3 in 2.2 M1.
I have grep the bootstrap file in 2.2 M1 and the v3 is present libby@liberta1-MOBL1:~/Toaster2.2_M1/poky$ git log | head -1 commit 6f0c5537e02c59e1c8f3b08f598dc049ff8ee098 libby@liberta1-MOBL1:~/Toaster2.2_M1/poky$ git grep bootstrap bitbake/lib/toaster/toastergui/static/css/bootstrap.css: * Bootstrap v3.3.6 (http://getbootstrap.com) bitbake/lib/toaster/toastergui/static/css/bootstrap.css: * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) bitbake/lib/toaster/toastergui/static/css/bootstrap.css:/*# sourceMappingURL=bootstrap.css.map */ bitbake/lib/toaster/toastergui/static/css/bootstrap.css.map:{"version":3,"sources":["bootstrap.css","less/normalize.less","less/print.less","less/glyphicons.less","less/scaffolding.less","less/mixins/vendor-prefixes.less","less/mixins/tab-focus.less","less/mixins/image.less","less/type.less","less/mixins/text-emphasis.less","less/mixins/background-variant.less","less/mixins/text-overflow.less","less/code.less","less/grid.less","less/mixins/grid.less","less/mixins/grid-framework.less",