Merge branch 'master' into excel-plugin
Merge branch 'excel-plugin' of https://github.com/kimsama/Unity-SpreadsheetPro into excel-plugin
modified GUIStyle for a header labels.
- reconstructed directory structures.
- separated BaseGoogleEditor and BaseExcelEditor
- separated template files.
- added ExcelMachine which specifies excel file's path and other setting to import excel file.
First draft of ExcelQuery class which will replace previous ExcelReader.
modified template code to use ExcelQuery instead of ExcelReader.