added new ignore files in .package_ignore
updated license year
removed OSCON.md
added new directives in manifest.json
added exclusion for Chrome manifest.json in .package_ignore
improved detection of expandable areas in injection script
made custom attribute standards compliant
improved performance of privly.js content script
rename Index into History
changed Chrome context menu
droped Index(History) in Chrome context menu
Merge pull request #60 from fullvlad/master

Disabled offline mode and updated several documents.
Merge pull request #61 from smcgregor/detect-expandable-areas

Detect expandable areas
Merge pull request #62 from fullvlad/renameApps

Rename Index to History
shortened extension name to just 'Privly'
moved ExtenstionSpec.js test into javascripts folder, droped OptionsSpec.js test
dropped pages/css/pages.css
removed trailing whitespaces
dropped 'Test Cases' header in background.html
Merge pull request #63 from fullvlad/master

Miscellaneous changes