[Merge] lp:~khurshid-alam/indicator-session/build-hirsute into lp:indicator-session

[Dmitry Shachnev]

The proposal to merge lp:~khurshid-alam/indicator-session/build-hirsute into lp:indicator-session has been updated.

Commit message changed to:

Fix various compiler warnings and deprecation warnings.

For more details, see:
https://code.launchpad.net/~khurshid-alam/indicator-session/build-hirsute/+merge/401195
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