clean up git ignore
use thrust for rake tasks & CI
add travis badge to readme
WIP: integrate work from nevyn, still a little buggy
major project file update and improvements

- Add Cedar as pod
- Remove dependencies from static lib (only link against app which is the Specs)
- bump iOS version
- general organizing
- use stdbool in srp
- update podfile
- update pod spec
run pod install on travis builds
Add rbhive

- Fix specs target to only link against main pods lib
Lock down rvm
set pods to 0.29.0
use http for temporary pod git paths
add srcroot to path
Fixed memory corruption in srp_create_salted_verification_key 

`*len_v` is used for `malloc` before being assigned the actual length. This usually resolves to `malloc(0)` and causes a memory corruption when `BN_bn2bin` writes there.
update podfile lock
Merge remote-tracking branch 'boundsj/develop' into martin