chart code refactored
all layout code moved to correct method
modified json types and deserialization in reports
added PrepareResponse call. Project's color bug fixed
TryParser to convert string value for project's colors
Merge pull request #399 from toggl/anton-refactorviewcode

View code refactored. Closes #378
Merge pull request #403 from toggl/anton-jsonparser

Modified json types and deserialization in reports. Closes #377
added SummaryReportView test
IReportClient mocked besides minor changes on SummaryReportView