History as a Collection View
added Statistics Layout
changing in views
added missing reference
added Hicharts library
change styles for statistics. Add sample chart
basic layout for history
added pie chart example
added linqjs
items for PieChart in correct format
aded hook for Expence saving
Merge branch 'master' of github.com:indvisible/expenses into report
Expence.place - remove required validation
Merge branch 'report' of github.com:indvisible/expenses into report
some changes in history view