modified ReportData, ReportJsonConverter classes
added grandtotal assignment
Adapt reports to SummaryReportView changes.
text added to barchart
Merge pull request #388 from toggl/anton-labelstobarchars

text added to barchart. closes #381
Merge pull request #387 from toggl/taavirehemagi-reports-refactor

Adapt reports to SummaryReportView changes.
Merge pull request #386 from toggl/anton-fixtravistest

Fix project to pass Unit tests. closes #368
zoom level changes with vertical animation
added fade-scale transition