Allow ESC to cancel new store prompt.
Fix display of double high terrain tiles.
 partial fix of double height tiles is look mode and drawing too much.
Added instructions for compiling with Cygwin.
Merge pull request #173 from david3x3x3/cygwin-compiling

Updated compiling.txt with instructions for compiling with Cygwin.
Fix for #1652: make Carbon and Cocoa mbcs hooks return properly when
encountering an invalid multibyte sequence, and filter out unprintable
keypress codes in lookup_symbol().
Fixed typo in interpreter directive for autogen.sh. (thanks to bron)
Fix for #1660: call create_needed_dirs() from
main-cocoa.m:initialize_file_paths().
Cocoa port: fixed Info.plist input file to use Makefile variables
instead of hard-coding some strings.
Fix for #1661: obj_can_refill() now checks tvals when looking for nonempty lanterns.
Added unit test for #1661 (obj_can_refill()).
Merge Blubaron's store UI fixes

* blubaron/fix-store-ui:
  partial fix of double height tiles is look mode and drawing too much.
  Fix display of double high terrain tiles.
  Allow ESC to cancel new store prompt.
Fix for non-mingw builds on Cygwin.
(cherry picked from commit 4043b3f7b616763387cd5f29c97319deacc032d6)
Temporarily disable the "reset layout" option as it was causing the game to crash
(cherry picked from commit 849e4b2fe1e94c5de75750976c3eaa0a61e26502)
Fix crash bug when mouse-clicking squelch menu
(cherry picked from commit 0e9b57da3f23ab75d93a24fc55f478d1a6a358f3)
Fix for #1662: Cocoa port ignores NSNumericKeypadMask for arrow keys,
plus updates to pref.prf to respect new keymap/keyset conventions for A:
lines (specifically, the running section).
(cherry picked from commit 4be2349d385c538ed3c95b6822f32c5b220daace)
Possible fix for #1663: When linking on OS X, set deployment target via
environment variable to 10.5, thus avoiding the LC_DYLD_INFO_ONLY load
command.
Allow pickup in darkness (fixes #1665)
(cherry picked from commit fbff4c5a9318a497873f09dfbf71222c7a7bdaf4)
Refresh screen after chest opening, fix #1666
(cherry picked from commit 434e44aa503a8f7efecb2ab440216ab13e91369e)
update changes.txt