indy-sdk 0.1.1-53

This is the official SDK for Hyperledger Indy (https://www.hyperledger.org/projects), which provides a distributed-ledger-based foundation for self-sovereign identity (https://sovrin.org). The major artifact of the SDK is a c-callable library.
Documentation 
# Setup of IOS build environment

1. Install Rust and rustup (https://www.rust-lang.org/install.html).
1. Install toolchains using command:

   ```
   rustup target add aarch64-apple-ios armv7-apple-ios armv7s-apple-ios i386-apple-ios x86_64-apple-ios
   ```
1. Install cargo-lipo:
   
   ```
   cargo install cargo-lipo
   ```
1. Install required native libraries and utilities:
   
   ```
   brew install libsodium
   brew install zeromq
   brew install cmake
   ```
1. Setup environment variables:
   
   ```
   export PKG_CONFIG_ALLOW_CROSS=1
   export CARGO_INCREMENTAL=1
   ```
1. Edit script build-libindy-core-ios.sh: set the following variables to fit your environment:
   
   ```
   export OPENSSL_DIR=/usr/local/Cellar/openssl/1.0.2k
   export EVERNYM_REPO_KEY=~/Documents/EvernymRepo
   export LIBINDY_POD_VERSION=0.0.1
   ```
   OPENSSL_DIR - path to installed openssl library
   
   EVERNYM_REPO_KEY - path to file with private key to be authorized on deb server
   
   LIBINDY_POD_VERSION - version of libindy-core pod to be built
1. Run the script. Validate the output that all goes well.
1. Go to `Podspec` dir.
1. Create directory with name defined in LIBINDY_POD_VERSION:
   
   ```
   mkdir LIBINDY_POD_VERSION
   ```
1. Copy libindy-core.podspec.json to that new directory from some previous version.
1. Edit this json -> change version field to LIBINDY_POD_VERSION.
1. Add new directory and file inside to git repository.
1. Commit to master branch.
1. for all projects which using libindy-core do not forget to make:

   ```
   pod repo update
   pod install
   ```