feature(graphs): calculate tickFormat by value range
Merge pull request #137 from StarterSquad/feature/240-y-axis

feature(graphs): calculate tickFormat by value range
feature(optimization): replace nvd3 chart with custom d3 directives
refactor(optimization): fixed initializing i twice with var
refactor(optimisations): cleanup legacy code
fix(optimization): re-render graphs based on type
style(analysis/optimization): removes unused linedataTpl