Fixes the build deps between opentxs and opentxs-server.

Adds a COMPONENT name. Otherwise the build package would be called
opentxs-*-Unspecified. In the opentxs-server package a dependency is
defined on the opentxs package. There was no such package. This commit
lets opentxs-server reference opentxs-main (it had to have a suffix).
Merge pull request #173 from haarts/fix_ubuntu_package_deps

Fixes the build deps between opentxs and opentxs-server.
OTTransaction: remove OTCronItem Angels
Merge pull request #174 from toxeus/cleanupAngel

OTTransaction: remove OTCronItem Angels
Updated instructions for Windows to install ZeroMQ correctly
Specifically making sure to set the environment variables:
CMAKE_LIBRARY_PATH (to find the external dependency libraries)
CMAKE_INCLUDE_PATH (to find the external dependency include files)
PATH (to find the external dependency dll's)

Made sure find_library() finds Windows version of ZeroMQ library
Removed unnecessary copying of dll's from Cmake files
Merge pull request #171 from BugFreeSoftware/fix_zeromq

Fixed Windows detection of ZeroMQ
Moved in server library from opentxs-server in preparation for auditor work down the road.
Install opentxs-server library as well.
Merge pull request #175 from murrekatt/develop

Moved in server library from opentxs-server in preparation for auditor work down the road.
OTCronItem: cleanup NewCronItem()
Merge pull request #178 from toxeus/cleanupNewCronItem

OTCronItem: cleanup NewCronItem()
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Android build system is outdated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