fontSettings doc added

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
power api doc added

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
proxy api doc added

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Proxy API Tutorial added

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
identity api doc added

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Added mention of new apis in declare permissions doc

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
added 'requirements' in manifest doc

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Changes in the description table.

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Changes in the sidebar to reflect new articles and docs

Signed-off-by: Shwetank Dixit <emailshwetank@gmail.com>
Merge pull request #67 from shwetank/master

Various changes to articles and the sidebar