Update Lift to 1ee3746
Update Lift to 1ee3746

build: Fixes for nested project build
build: Detect pthread flags and pass them to the linker
build: Link with ldl if needed
src: Make liblift depende on tbb
Add initial Travis build
Convert external projects to git submodules
Merge remote-tracking branch 'origin/master' into cpuid
Build lift static library, implement x86_64 CPUID
Add skeleton CMakeLists.txt, move library into subdirectory
scoped_allocation: Inherit from persistent_allocation
parallel: Fix device pointer readbacks in GPU path
pointer: Add peek() method, make cross-device reads more uniform
pointer: Make operator[] uniform
timer: Avoid std::tuple
timer: Allow accumulating multiple timer runs

broadinstitute/firepony,NVlabs/firepony,broadinstitute/firepony,NVlabs/firepony,broadinstitute/firepony,NVlabs/firepony,broadinstitute/firepony,NVlabs/firepony