Html reader, with rowspan + colspan + style

Class phpExcelReader : 
- Replacing private by protected
- error at line 129, function strpos(string $haystack , mixed $needle)
- add rowspan and colspan
- add style (very very slow when used, use function applyFromArray), works only for alignment / numberformat (example: td{vertical-align:middle;phpexcel-number-format-code:"$#,##0.00;($#,##0.00)"})/ indent  => see class CssPhpExcelTranslator.php
- function autosize added and commented (working, need to be optional)

Class CssPhpExcelTranslator :
- transform all css to array style form phpExcel
- works only for few css, need to be fill up

Class CssParser :
- parse all css to array

Class PhpExcelStyle :
- give more flexibility for the future if we need more than an arrayStyle for phpExcel

+ Reformating and redid indentation