Addressing coverity issue. Ticket #513.
The memory was really leaked when
the configuration value was empty.
Added unit test that confirmed the bug.
MANUAL MERGE.

Addressing ticket #504

Conflicts:

	common/ini/ini_config.c

This is a reworked patch to add support for explicit
32 and 64 bit values in the config files.

Comment object will store
the comments found in the INI file.
It is based on the ref_array
interface.

Fixing review comments for comment obj.

Time came to split ini_config.c
into many much smaller pieces.

1) ini_parse.c - will have parsing functions
2) ini_get_value.c - will have single value
interpretation functions
3) ini_get_array.c - will have array interpretation
functions.
4) ini_print.c - error printing
5) ini_defines.h - common constants
6) ini_parse.h header for parsing functions
7) ini_list.c - will have list processing functions

When running 'make distcheck', the entire source directory is set
to read-only, to ensure that the build process only has write
access to $builddir. As a result, this was causing the unit test
for file mode to fail, since the file it was testing resides in
the $srcdir.

This patch guarantees that the test file has the correct
permissions prior to running the access test.

[TRACE] Adding macros for signed numbers

1) Fixed the issue that metadata was saved
as numbers. Was supposed to be saved as strings.
2) Added two functions. One is to check permissions
on the config file. Another to check if the file
has changed and thus the cinfiguration needs
to be reread.
3) Added unit test will sample code
and comments how to use the functions.
4) Added doxygen description in the comments.
5) Fixed couple typos and ommisions here and there.

[INI] Fixing crash detected on 64-bit system

This patch corrects original code to be
more on the safe side and check parameters
before using.
Instead of dereferencing metadata it is now
passed as reference to the next level.
It is not used there yet so no other new changes
needed so far.

[INI] Addressing review comments

[INI] Addressing comments.