Added power support

[dthadi3]

Added power support for the travis.yml file with ppc64le. This is part of the Ubuntu distribution for ppc64le. This helps us simplify testing later when distributions are re-building and re-releasing. For more info tag @gerrith3.

[codecov-io]

Codecov Report

Merging #200 into master will decrease coverage by 2.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #200      +/-   ##
==========================================
- Coverage   58.43%   55.56%   -2.87%     
==========================================
  Files          17       17              
  Lines        2271     2012     -259     
==========================================
- Hits         1327     1118     -209     
+ Misses        710      662      -48     
+ Partials      234      232       -2     

Impacted Files	Coverage Δ
msp/matrix.go	79.59% <0.00%> (-6.13%)	⬇️
persist/persist.go	50.00% <0.00%> (-5.56%)	⬇️
passvault/passvault.go	43.77% <0.00%> (-3.38%)	⬇️
msp/msp.go	77.39% <0.00%> (-3.35%)	⬇️
symcrypt/symcrypt.go	78.94% <0.00%> (-2.88%)	⬇️
msp/formatted.go	72.04% <0.00%> (-2.72%)	⬇️
cryptor/cryptor.go	51.26% <0.00%> (-2.24%)	⬇️
core/core.go	43.49% <0.00%> (-2.23%)	⬇️
keycache/keycache.go	47.82% <0.00%> (-1.66%)	⬇️
ecdh/ecdh.go	63.26% <0.00%> (-1.45%)	⬇️
... and 7 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 34d894f...e188958. Read the comment docs.