- Update to 05_20121125

  20121125:
  - The makefiles and the file setpaths.c were improved to accept the
    macros S7_LIB_DIR (Directory with static Seed7 object libraries)
    and SEED7_LIBRARY (Directory with the Seed7 include libraries).
    Now the build process of a package can call make e.g. with:
    make S7_LIB_DIR=/abc/seed7/bin SEED7_LIBRARY=/abc/seed7/lib depend
    This way the two paths are defined in version.h. This defines them
    as default paths in the interpreter executable and in the compiler.
  - An explanation, what a binary Seed7 package should install, was
    added to the FAQ. This can be used as guideline for Seed7 packages.
  - The description of the times-operator in the manual and in
    array.s7i was improved.
  - A description of the function name(PROGRAM), file(PROGRAM) and
    'environment' was added to the manual.
  - The new library environment.s7i was added. Most of the contents of
    this library was extracted from "seed7_05.sd7". The new library is
    included from "seed7_05.s7i", so no change in existing programs is
    necessary.
  - A documentation comment for getSearchPath was added to shell.s7i.
  - The functions ltrim and rtrim were added to the library string.s7i.
  - Testcases for ltrim and rtrim were added to chkstr.sd7.
  - The function getProgramName in arr_rtl.c was improved to do the
    comparison with EXECUTABLE_FILE_EXTENSION correctly.
  - The program tar7.sd7 was improved to accept also DOS paths for the
    file specified with -f.
  - The function homeDir was improved to work with DJGPP (either $HOME
    or C:\ is used).
  - The function prc_cpy in prclib.c was improved.
  - The files executl.c, hshlib.c, ref_data.c, reflib.c and sctlib.c
    were improved to copy the descriptor union with memcpy and to copy
    the posinfo flag with SET_ANY_FLAG, when necessary.

  20121104:
  - The new function homeDir was added to the library osfiles.s7i.
    Interpreter and compiler were improved to support homeDir.
  - The libraries makedata.s7i and make.s7i were improved to support
    replacement macros.
  - A check for division by zero with /:= was added to chkflt.sd7.
  - The compiler (comp.sd7) was improved to use definitions of
    NOT_A_NUMBER, POSITIVE_INFINITY and NEGATIVE_INFINITY.
  - The program chkccomp.c was improved. Now it manages the macros
    likely, unlikely, UNISTD_H_PRESENT, POPEN_MISSING, os_utime_orig,
    os_utime, USE_ALTERNATE_UTIME, INCLUDE_SYS_UTIME, USE_LOCALTIME_R,
    USE_LOCALTIME_S, FLOAT_ZERO_DIV_ERROR, CHECK_FLOAT_DIV_BY_ZERO,
    ISNAN_WITH_UNDERLINE and HOME_DIR_ENV_VAR. Additionally chkccomp.c
    does not depend on the definitions of long_long_EXISTS,
    long_long_SUFFIX_LL, __int64_EXISTS, __int64_SUFFIX_LL and
    USE_BUILTIN_EXPECT in chkccomp.h.
  - The functions flt_div and flt_div_assign in fltlib.c were improved
    to work correctly when CHECK_FLOAT_DIV_BY_ZERO is defined.
  - Several #defines were ommitted from the makefiles.
  - Explanations of several version.h #defines were added to
    read_me.txt

Feature safe:	yes

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