Adjust documentation build for current doxygen versions

Pass TEXINPUTS env var to child processes

Utils/Daemon: Fix DuplicateEventRegistration bug

Scheduler: Optimize watchdog implementation
Socket: Change read-into-container implementation to skip unnecessary available() call
Add 'profile=1' compile option
Exclude 'boost' and 'std' symbols from documentation

Scheduler: Documentation update

Scheduler: Watchdog configuration support

senfscons: Speed up non-documentation builds (doesn't help much)
Socket/Protocols: Add documentation for sockaddr_cast

Further detailed doc reformatting

doclib: Add more comments to html-munge.xsl

Console: Implement custom argument parser support
Utils: Add Boost.Parameter has_parameter helper
senfscons: Show reason (error message) in the CompileCheck builder

Console: First implementation of command argument parsing
doclib: Better doxygen header/footer dependency handling
add missing Console includes

Console: Implement OverloadableCommandNode
Console: Make all virtual functions private
Console: Rename ObjectDirectory to ScopedDirectory
Console: Move non-template dependent ScopedDirectory members to ScopedDirectoryBase
Console: Provide owner-less void specialization of ScopedDirectory

Console: Documentation

Console: Complete the ObjectDirectory proxy interface
Console: Add additional special chars as punctuation chars
Console: Documentation

- some documentation updates, once again

doclib: Introduce an intermediate doxygen-compatible image map format
Update all image maps to the new format

Packets/DefaultBundle/extra_tests: use unittest include from utils /grrr
Socket/Protocols/AddressExceptions: fixes
Socket: fixed documentation