temporary return error hiding for master branch
Update README
Merge branch 'dev': fix some install bugs
Update README
code format
+ PdoAlapter class to use PDO like old PEAR:DB
start PDO migration. most code works.
text fix
fix undefined vafiables in component and version creation forms
templates/default/install-dbfailure.html -> templates/default/install-dbfailure.html.php
code format
install works via PDO
remove PEAR_DB
remove PEAR.php
Merge branch 'dev-pdo': Remove PEAR:DB totally! Project uses PDO now
Merge branch 'no-pear' : Remove PEAR:DB totally! Project uses PDO now
Update CHANGELOG
Update README
Revert "temporary return error hiding for master branch"

This reverts commit 8802912edc0f6bd482687639cd89d871bbfc4590.
Added STRICT_ERROR_MODE constant. If ==1 system will throw ErrorException on any error. Hard recommended for developers. Default is 0.