improved the signature invalid message
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
Merge branch 'master' into gh-pages
added message that key generation may take some time and made the button getting disabled to indicate that keys are generating
Merge remote-tracking branch 'origin/gh-pages' into gh-pages