libfdisk: add docs for BSD functions
libfdisk: add docs for DOS functions
libfdisk: add docs for GPT functions
libfdisk: add docs for init functions
libfdisk: add docs for iterator
libfdisk: fix typo
libfdisk: cleanup fdisk_partition_to_string() comment
libfdisk: add docs for SUN functions
libfdisk: add docs for SGI functions
libfdisk: add comments to header file

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: cleanup in libmount Makemodule

Signed-off-by: Karel Zak <kzak@redhat.com>
blkdiscard: fix compiler warning

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: create a regular shared libfdisk.so

- symbols versioning
- SONAME from configure.ac
- library version to header file
- modify build-sys to compile and install shared lib

Signed-off-by: Karel Zak <kzak@redhat.com>
build-sys: add fdiskP.h to sources

Signed-off-by: Karel Zak <kzak@redhat.com>