Merge pull request #15 from irisshu/develop

Develop
add pie chart title
Merge pull request #16 from HsiaoYuShih/piechart

add pie chart title
修改 Pie chart 配置.
Improve pie chart layout design.
Backup.
Get political contributions data. (Back up)
Able to get JSON array and the political contribution data of every legislator.
Store data in legislatorListWithPoliticalContributions.
完成政治獻金的抓取與顯示.
Merge pull request #17 from irisshu/pie_chart

Pie chart