Added build-stamp file to .gitignore.
Updated documentation: Typos and keep track with implementation.
Minor fixes like not quoted variables and other stuff.

Tried to make the coding style more uniform.

Noticed while reading the code.
Looked over layout-functions.sh. Minor improvements.
Why not using ISO 8601 as date format?
adding the release notes for 1.16 to doc/
push release notes 1.16 (again)
Merge pull request #409 from ypid/miscellaneous

Miscellaneous coding style fixes
changed LOADER into LOADER_TYPE
Updated the rear man page with some missing BACKUP settings and some other little items
updating the user documentation - more updates still required
Replacing bash v4 code with bash v3 code to avoid syntax conflicts between the different base versions
related to issue #410
change the make validate rule:
changed "xarg bash -n" in "xargs -n bash -n" (thanks to Johannes Meixner for bringing this forward)
related to issue #410
Make sure that extlinux is present for USB OUTPUT, helps #250 but needs #418
An example prep script to check if extlinux exists - related to issue #250
Merge branch 'master' of github.com:rear/rear
remove this script (05_check_extlinux.sh) as 40_check_extlinux.sh is used for the same (in a slight better way)
23_filesystem_layout.sh: fix btrfs uuid grabbing
see issue #408
adding -f option to mkfs.btrfs - see issue #415; appended : to uuid grep (issue #408)
increasing version nr from 1.16 to 1.16.1 (sub release for bash validation; missing docs; and minor bug fixes)