pvDataCPP and pvData java

[Marty K. <mrk...@co...>]

pvDataCPP, i.e. the C++ version of pvData is now ready for use.
Under documentation there is a file pvDataCpp.html
Matej is currently implementing pvAssessCPP.

It is being developed in a mercurial repository at 
epics-pvdata.hg.sourceforge.net/hgroot/epics-pvdata/pvDataCPP

I have also committed changes to the following Java projects: pvData, 
pvAccess, javaIOC, pvService, and integrationTests.
The main changes are to pvData.

1) The syntax for displaying data is the metadata syntax I first used 
at  the BNL Epics meeting. It is described in the project overview 
javaDOC and also in pvDataCpp.html

2) The way properties are accessed are changed to be like what was done 
for C++. It is easier to use and more efficient about using the heap.

The changes to pvAccess, pvService, and integrationTests were small.

Marty