Propagate writeStrict port option to RemoteCotrolBoard

yarp port has the writeStrict option but was not possible to tell RemoteControlBoard to activate it if necessary.
The configuration now checks also for a 'writeStrict' option with 'on' or 'off' as possible choises where 'off' is the default (keep backward behaviour).
This happened to be needed for streaming port because otherwise some commands were sistematically lost.
fix typo
add (optional) api call to commit to a single port type
helper for sending non-terminated strings with lengths
do not mix terminator ports and topics
add yarp/image type information to framegrabber server
fix transmission of images from YARP to ROS
preconnect subscriber when running over roscore
do initial ros subscriber hookups in a separate thread
xmlrpc connections against ros are terminated on receiver side
fix stray RF log message that does not respect --verbose false
use deprecated-old-style-context only when a policy is set [thanks elen4]
add a clearer link to current repository
make yarp::os::ConstString always be a consistent type
Changing yarp_install macro to accept (almost) all of install() arguments
Restoring RF:: getContextPath old behaviour when configured with policy
Check if __ACE_INLINE__ is needed before other checks

The other tests will fail during linking if this flag is required,
therefore the returned variable will be false, even if they should be
true.
Fix ACE_ACE_LIBRARY* name if MacroStandardFindModule fails
Explicitly define __ACE_INLINE__ if required in ace checks
FindACE: Use CMAKE_TRY_COMPILE_CONFIGURATION instead of CMAKE_REQUIRED_DEFINITIONS