Implement simple shared state as a Map (#8304) - work in progress
In this version, SharedState can return a map that will be transferred.
On the client side, shared state is deserialized from the map but not
used.
Shared state is not sent for nested components that have not been
painted yet - doing so requires refactoring of painting of components.
Large pile of various optimizations and small bug fixes. Changeset has a great regression risk, blame me on new odd bugs.
* default alignments/expandratios now not transported over uidl
* added new map type to painttarget
* rewrote UIDL with overlay type
* ditched gwt JSON implementation instead of own "overlay type" altogether
* using arraylist instead of vector in all places on client side
* optimized a bit LocaleService
* rewrote uidl browsers in debug window (now does not stall IE that easily with large changesets)
svn changeset:8516/svn branch:6.1