doc and tests
Merge pull request #53 from fischel/master

missing doc and tests
 Added parameter to readRow/readCol/read methods that specifiy whether to parse formula or its value.
Merge branch 'master' of github.com:iliaal/php_excel
Revert "fix comment"

This reverts commit 817981033be15f788b0afda5790bfdd0da989978.
Revert "char s"

This reverts commit c8fa738bf9dcaee0ddcc2db282563eb435be5a84.
Revert "typo fixes"

This reverts commit ac166c652ad23d9313d8d8610efa3cfc1ddaf3b9.
Revert "change default behaviour of ExcelSheet::read() to return always the calculated value and add method ExcelSheet::readFormula() to return the formula if available. The methods ExcelSheet::readRow() and ExcelSheet::readCol() will use the new read() function as well."

This reverts commit 846b9f307c4ca7c7798a40472c3908493314cea2.
Merge remote-tracking branch 'upstream/master'