* Some refactoring, so fpweb is easier to customize

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25563 3ad0048d-3df7-0310-abae-a5850022a9f2
* Commented out exponent check added in r25549: since this code is used by compiler, it breaks compilation of code with constants in extended range on targets without extended precision.

git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@25564 3ad0048d-3df7-0310-abae-a5850022a9f2