Merge pull request #268 from ucb-bar/release

Update chisel manual template to match RELEASENOTES.
Verify issue #76 is resolved.
Added log2Ceil(), log2Floor() which return 0 for an argument of 1 - #83.
Merge pull request #270 from ucb-bar/widthinfininfer76

Verify issue #76 is resolved.
Merge branch 'master' into log2up83
Merge pull request #271 from ucb-bar/log2up83

Add log2Ceil(), log2Floor() resolving #83
Clean up Parameter integration with Module and Bundle factories
Added first pass at parameter documentation
Improve ChiselConfig composability
Catch more error types when composing ChiselConfigs
Unbreak the build
Merge pull request #272 from azidar/master

Added first pass at parameter documentation
Add testRepeatedWireNames209 for issue #209.
Merge pull request #273 from ucb-bar/repeatedwirenames209

Add testRepeatedWireNames209 for issue #209.
Merge pull request #274 from ucb-bar/master

incorporate master commits for v2.2.19 release