Merge pull request #1505 from pyne/0.7.8-rc1

Changes for release 0.7.8

Merge pull request #1451 from pyne/0.7.7-rc1

Perform microrelease for v0.7.7

Merge pull request #1439 from pyne/0.7.6-rc1

0.7.6 rc1

Merge pull request #1396 from gonuke/release-0.7.5

changelog update for 0.7.5 microrelease

Merge pull request #1384 from bam241/micro_0.7.4

Updating changeling for micro release 0.7.4

Update CHANGELOG.rst

updating CHANGELOG for micro release 0.7.3

Merge pull request #1337 from bam241/mat_lib_hash

update the address of the materials group for the hash checking

Update CHANGELOG.rst

Update CHANGELOG for microrelease

Merge pull request #1323 from gonuke/0.7.0-rc-merge

0.7.0 rc merge

Merge pull request #1305 from gonuke/more_cmake_info

Allow spatial solvers to be built in conda environment