missing copyright and license

svn path=/trunk/libs/proto/; revision=77419
simplify description of how to make lazy functions

svn path=/trunk/libs/proto/; revision=77446
merge [77446] from trunk

svn path=/branches/release/libs/proto/; revision=77447
use decltype-based result_of if and only if the compiler implements N3276

svn path=/trunk/boost/proto/; revision=77873
merged [77873] from trunk

svn path=/branches/release/boost/proto/; revision=77919
c++11, force parameter to mpl::eval_if_c and mpl::if_c to be bool

svn path=/trunk/boost/proto/; revision=78122
c++11, force parameter to mpl::if_c to be bool

svn path=/trunk/boost/proto/; revision=78141
disable '__forceinline not inlined' warning on msvc

svn path=/trunk/boost/proto/; revision=78196
merge [78122], [78141], [78196] from trunk

svn path=/branches/release/boost/proto/; revision=78260
fix minor typos

svn path=/trunk/libs/proto/; revision=78835
merge [78835] from trunk. simple doc tweaks

svn path=/branches/release/libs/proto/; revision=78837
transforms get pseudo-parameter pack expansion support for unpacking expressions

svn path=/trunk/boost/proto/; revision=79461
reference docs for pseudo-pack expansions in transforms

svn path=/trunk/boost/proto/; revision=79465
user docs for unpacking patterns in transforms

svn path=/trunk/boost/proto/; revision=79485
merge [79461], [79465], and [79485] from trunk

svn path=/branches/release/boost/proto/; revision=79526
tests for proto::protect

svn path=/trunk/libs/proto/; revision=79567
add support for transform environment with slots for key/value pairs

svn path=/trunk/boost/proto/; revision=79632
add reference section for new transform environment functionality

svn path=/trunk/libs/proto/; revision=79678
user docs for transform environments

svn path=/trunk/libs/proto/; revision=79686
add release notes for 1.51 (unpacking patterns) and clean up example in unpacking patterns section

svn path=/trunk/libs/proto/; revision=79703