Added convenience string to date and date to string functionality in QL Date class.
Merge remote-tracking branch 'lballabio/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'lballabio/master'
Merge branch 'master' of https://github.com/mdriesch/quantlib
merge from trunk
Merge remote-tracking branch 'upstream/master' into quantlib-merge

Conflicts:
	QuantLib/ql/experimental/processes/gemanroncoroniprocess.cpp
avoid clang++ warning
avoid clang++ warning
Merge pull request #34.
Moved parsing of dates to existing utility class.

Previous parsing functionality was deprecated. A few tests were added.
Renamed holder generator to "formatted_date".

It seems more descriptive and less ambiguous than "userdefined_date"
(it's the format which is user-defined, not the date).

Also, the preprocessor checks for Boost > 1.33 were removed (since
we already assume that Boost is at least at version 1.34.1).
Merge pull request #29.
rename files
comment out code (has to be adapted to new floatfloatswaption class
update makefile
make constructor protected
remove unused member, some other small corrections
make constructor protected
generalize cms swaption engine to float float swaption engine, initial commit