Add Show/Hide Filesize Info to TreeProjectWidget, PEP8 Fixes
Merge pull request #1667 from juancarlospaco/feature/treeproject_filesizeinfo

[TreeProjectWidget] Add Show/Hide Filesize Info, PEP8 Fixes
Merge remote-tracking branch 'upstream/master'
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Merge pull request #1670 from diegosarmentero/master

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Merge remote-tracking branch 'upstream/master'