Included two more icon images into the editor help section.
Add a translated "description" attribute to the [time_of_day] tag.

This is meant to be used in the help browser.
Autogenerated "Time of Day Schedule" help browser section.
update RELEASE_NOTES
update INSTALL dependency list
fixup changelog

in previous changelog commit
- some unicode characters got corrupted somehow
- help browser section was added

this commit fixes the characters, and moves a bunch of other
entries from miscellaneous to help browser section
update changelog
update RELEASE NOTES
Xcode: switch from using filesystem.cpp to filesystem_boost.cpp

This includes adding a new library (libboost_filesystemw.dylib), so a
new version of the Mac compile package is needed for compiling.
It also changes the default user directory to ~/.wesnoth1.13
Update changelogs and release notes with new OS X user directory

It changed from ~/Library/Application Support/Wesnoth_1.13 to
~/.wesnoth1.13 as a result of the new file system code.
Add note about new Xcode compile package to changelog, release notes
HttT S16: Hide Li'sar on prestart, not start

Otherwise she is visible for a split second at the start of the
scenario.
Fixed bug #22799 and improved the related code
Fixed a comment and commented out a debug message
Fixed the traveler's ring part of bug #22790
dump library versions also, when using `wesnoth -v`
fixup version reports

- Pango and Cairo now describe both their compile time and runtime
versions
- Boost now states that it is the compile time version, afaik
wesnoth cannot determine what boost versions it is linked against.
make lua dofile use our filesystem functions
fix filesystem_boost.cpp on mingw

this raises our dependency for boost iostream to 1.44 or above
add boost 1.44 comability

it seems like iostream from boost 1.44 is incompatible to filesystem
from boost  1.44.
Actualy i didnt veryfy this becasue i don't have boost < 1.50. I added
an adapter for boost filesystem that made it looks liek filesystem 1.43
which we can pass to boost iostreams 1.44.