new method get() which does not take a default parameter and throws an exception if the key is not found in the parameter set

[[Imported from SVN: r4980]]

[[Imported from SVN: r4753]]

[[Imported from SVN: r4728]]

If you used such values so far just add additional quotes:
'my string needs quotes' -> ''my string needs quotes''
-This line, and those below, will be ignored--

M    configparser.cc

[[Imported from SVN: r4577]]

[[Imported from SVN: r3466]]

[[Imported from SVN: r2259]]

string::find returns string::size_type not int.

[[Imported from SVN: r2242]]

[[Imported from SVN: r2230]]

[[Imported from SVN: r2229]]

[[Imported from SVN: r2228]]

[[Imported from SVN: r2227]]