Improvement of performance and reliability of BaseObjectHandler.
Fix of isLocal of B-tree MOFID class.

Fix such that nbm's are built into multiple nbm's. Also add
help skeleton (no actual content yet).

Transformation of internal MOFID representation from String to MOFID object,
the MOFID object provides better serialization (8 Bytes) than String, so the
size of storage is reduced by 1/3 of its previous size. Also the speed may be improved,
the hashCode method is faster than it was before.
All users which are using MDR API on the storagemodel and persistence level
are affected by this commit, and must update the code.
The updated code has not passed the Federation unit test.

BACK OUT the previous build.xml update - there is still a problem
with config builds.

Fix http://www.netbeans.org/issues/show_bug.cgi?id=26306
"Wrong dependency"
There was a problem in the way the tasklist.nbm was generated;
it contained all the modules, but the Info.xml file only listed
one. Redo the way .nbms are created and create -separate-
nbm files, one for each module. Also rev versions to ensure
these are put up on the autoupdate center. I changed the
category from "Tools" to "Task List" to tie the modules together
in one place since there are four of them - that makes a category
doesn't it? :)

Create new import/export filters; make the Import and
Export actions use these (Lots of refactoring to isolate
all import/export code to dedicated classes.)

Switch to iCalendar as the persistence format for the
tasklist. That's because I noticed most other calendar
tools use it so this will make interoperability easier;
you can of course still export to xCalendar.

Save backup files of the tasklist; the first time per
IDE session the tasklist is saved, the current version
of the file is renamed to {filename}~.

Fix such that Go To Source works for user tasks again.

Misc minor changes & fixes.

removed fix for #23524
it needs to be fixed differently (by invalidating the used mofids in b-tree storage)

Sorry, now it's really fixed

html bug in javadoc fixed

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