Fix #14. Cast signed strings to unsigned to prevent ctype.h warning
Merge pull request #15 from jpallister/newlib_tolower_fix

Fix #14. Cast signed strings to unsigned to prevent ctype.h warning
Delete the analysis directory.

Following feedback on the mailing list it seems the contents of the
`beebs/analysis` directory are no longer required.

ChangeLog:

	* analysis/Makefile.am: Deleted.
	* analysis/Makefile.in: Deleted.
	* analysis/all_stats.py: Deleted.
	* analysis/cmd.arm-none-eabi: Deleted.
	* analysis/cmd.avr-unknown-none: Deleted.
	* analysis/instruction_stats.py: Deleted.
	* analysis/simulator.in: Deleted.
Update README.md.

Things have moved on in BEEBS, and the README has fallen behind.  This
should bring things up to date.

ChangeLog:

	* README.md: Update for latest state of BEEBS.
Merge branch 'T-J-Teru-split-benchmarks'
Merge branch 'delete-analysis' of github.com:T-J-Teru/beebs into T-J-Teru-delete-analysis
Merge branch 'T-J-Teru-delete-analysis'
Merge branch 'update-readme' of github.com:T-J-Teru/beebs into T-J-Teru-update-readme
Merge branch 'T-J-Teru-update-readme'
Merge branch 'master' of https://github.com/mageec/beebs into stoil