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
barchart-zoom ready to test
added text alpha to top/bottom bars
zoom in barcharts reacts to tap
Merge pull request #405 from toggl/anton-zoomtappedbars

Added a zoom-at-tap effect to the bar chart. closes  #366
Merge pull request #404 from toggl/anton-reportunittests

added simple unit test to SummaryReportView. closes #383
changed method to define visible ReportView
load method fixed.delay added to avoid too many calls
resored IsLoading property to previous state