OTSignedFile FilePayload and SignerNymID
Remove tip4commit link

requested by lclc
Add links to install/build instructions
Add generic cmake instructions, remove android doc

Android build system is outdated
Restore Encrypt/Decrypt by KeyID functionality to OTWallet
Merge pull request #177 from OttoAllmendinger/readme-build-instructions

Readme build instructions
Merge pull request #179 from yamamushi/develop

OTSignedFile FilePayload and SignerNymID
travis: install libzmq3-dev instead of libzmq3
Merge pull request #181 from toxeus/travisZmq

travis: install libzmq3-dev instead of libzmq3
Made member functions const where possible in OTAxxx.hpp thru OTCxxx.hpp
Merge pull request #162 from BugFreeSoftware/core_const

Made member functions const where possible in OTAxxx.hpp thru OTCxxx.hpp
clang-format-wrapper.sh: drop GNU sed dependency
Merge pull request #182 from toxeus/dropGSed

clang-format-wrapper.sh: drop GNU sed dependency
Rename OTBasket to Basket.
Removed ot_super.
Removed commented out stuff.
Renamed OTBasketItem to BasketItem.
Renamed OTBasket to Basket throughout files.
Merge pull request #184 from murrekatt/develop

Rename basket classes to not have OT prefix.
clang-format: update config to 3.5

Fixes in this update:
- const not on single line
- curlys in try/catch same as if/else
- function declaration indented if broken after type
- initializer list begins always on new line
- break statement on own line