Makefile: fix DESTDIR

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Merge pull request #19 from ignatenkobrain/dev

Makefile: fix DESTDIR
clarified "dev" branch policy
Introduced "Continuous Block Mode" (CBM) naming
to better differentiate with future lz4s.c library
Revert "Introduced "Continuous Block Mode" (CBM) naming"

This reverts commit 53f1fbe062c6904b06d7181ccdb5a8fd6f883f15.
updated release number
Update xxHash to r36
Removed : old version of framing format
Added : LZ4 Framing Format, new version (v1.4.1)
Changed to HTML format
Modified .gitattributes to protect png files from crlf modifications
Added macro, for large file support on 32-bits AIX
minor cmake refresh
Fix : 64-bits macro detection for AIX system (thanks to SamG)
minor API comment clarifications
add new directory 'examples'
Added : mips 64 bits detection macro, as suggested by lew van
minor comment clarification about LZ4_compressBound()
Added : examples from Takayuki Matsuoka
Simplified travis test flow
Fixed crlf issue
updated lz4hc 64-bits detection