Change nbplatform.active to default
Merge pull request #5 from junichi11/change-nbplatform

Change nbplatform.active to default
 Fixed Issue #8
Addressed  Issue #7 "Integrate Source / History Tab"
Addressed  Issue #7 "Integrate Source / History Tab"
Pegdown release 1.2.1 added as Markdown processor
Pegdown release 1.2.1 added as Markdown processor
Pegdown release 1.2.1 added as Markdown processor
Issue #6 Version bump to the latest pegdown release and support for extensions via options menu
 Issue #6 Version bump to the latest pegdown release and support for extensions via options menu
Issue #6 Version bump to the latest pegdown release and support for extensions via options menu
Issue #6 Version bump to the latest pegdown release and support for extensions via options menu
Issue #6 Version bump to the latest pegdown release and support for extensions via options menu
Issue #6 Version bump to the latest pegdown release and support for extensions via options menu