Update README.md

Update links to point to the bsl wiki.
Merge branch 'master' of https://github.com/bloomberg/bsl
Add Contributor License Agreements section to README.
Update pkg- and group-level documentation
Update README.md

Add URLs for links to Online Library Documentation
Convert to a basic README that does not duplicate wiki content.
Remove exception for bslalg_constructorproxy test driver on AIX shared library builds.
Remove exception for bslmf_addreference test driver on Windows
Make the link to the wiki actually say that it is linking to the wiki. Add a 'feedback' section.
Merge branch 'import'

Conflicts:
	README.md
bsls_timeutil: Add clock_t static_cast.

Add static_cast<clock_t> to ::times return value to silence compiler warning
on OS_DARWIN due to clock_t being unsigned.
bsls_timeutil: Fix OS_DARWIN compilation.

Fixes sys/time.h ifdef logic to include all OS_UNIX other than
OS_LINUX and OS_AIX.
Separate includes for Darwin and Solaris to highlight their different rationales.
Rename build system to be BSL identified instead of BDE.
Fix issue tracker link.
Rename bde_meta_to_gyp* to bsl_*

* Update usage notes in bsl_meta_to_gyp
* Update references to 'bde/bsl metadata' in bsl_meta_to_gyp.patch
Add Travis CI config for 32-bit gcc builds.
Add Travis CI status image.
Merge commit 'eb0b3164fc283975d4616f0f7a5388052fdd5b29'
Merge branch 'import' into master