Remove hard-coded memory settings for 64bit Java 6

maxmem is no longer set for javac and javadoc in
etc/local.properties.example. Nor are these set by
build.py. If the system is detected to be a 64 bit
Java 6 VM, then no properties are set at all.

Otherwise, defaults are taken.

Note: my local environment had javac.maxmem set in
ANT_OPTS which has likely made this more complicated
then it ever needed to be.
Include amd64 in special handling
Restore 3rd-party "overriden" misspelling.
Add ChecksumValidationException and IntString map
Add fields to FILESET_UPLOAD_END event
Update ImportLibrary.importImage() upload logic

This commit changes the order in which events are sent to observers
and image checksum verification takes place. This allows for
abusing a single event in the case of a failed and successful upload.
Fix RTypesI.{cpp,h} whitespace
Fix whitespace in PermissionsI.cpp
Fix default permissions from string

PermissionsI.perm1 wasn't being properly initialized
leading to invalid trues from the getter methods.
Use explicit "omero.group" rather than -1

In gh-984, @rleigh-dundee saw testAdjustPermissions fail
periodically, likely caused by the default group of the root
user.
First go at fixing long group/user list. #9935

Conflicts:

	components/tools/OmeroWeb/omeroweb/webclient/templates/webclient/base/includes/group_user_dropdown.html
Group drop-down should stay the same for shorter group lists

Conflicts:

	components/tools/OmeroWeb/omeroweb/webclient/templates/webclient/base/includes/group_user_dropdown.html
Fix load_history template bug. See #10499
Support 1.6 and above via ant trick
Model and other initial server changes for #10338
Rename OriginalFile's "sha1" property to "hash".
Update submodules
Merge pull request #994 from mtbc/overriden-spelling-dev

Restore 3rd-party "overriden" misspelling.
Default to "r" mode if IAdmin.canUpdate fails (Fix #10657)

Any call to `RawFileStore.setFileId` with omero.group set to -1
was failing with an InternalException because IAdmin.canUpdate
was throwing. With this change, RawFileBean assumes that if
canUpdate fails that the mode should be "r", meaning no changes
are permissible to the file. Callers will need to explicitly
change the group id for "rw" behavior.

The major concern with this solution is that the action is silent:
even the owner of the file if calling with "-1" will not be able
to make changes.
Merge pull request #999 from joshmoore/more-cpp-test-fixes

More CPP test fixes