* Adapt version number in doc

This is a common mistake, its vs it's
Read about it at http://www.elearnenglishlanguage.com/blog/english-mistakes/its/

Account
* add comment, vote, transfer RC costs in account.print_info() and beempy power
* Shows number of possible comments, votes, tranfers with available RCs in account.print_info() and beempy power

RC
* add possibility to specify tx_size instead of constructing a dict for comment, transfer, vote and custom_json 

* estimated_mana is now capped by estimated_max
* print_info fixed()
* get_api_methods() and get_apis() added to Steem

Snapshot
* impoved and STEEM and SBD history added
* Documentation added
* get_data, reset, build functions added

Discussions
* Replies_by_last_update and Trending_tags
Blockchain
* get_transaction_hex added
Account
* get_tags_used_by_author added
Docs
* apidifinitions added

ImageUploader can be used to upload an image file or an image in bytes

CLI
* Add -l option to beempy
* Add -s option for broadcast via steemconnect
* addtoken, listtoken and deltoken added
* Add doc - files for nodelist, steemconnect and node
Storage
* sc2_scope removed from config
* hot_sign_redirect_uri added to config

Account
* Example added for transfer
Nodelist
* Doc added
Steem
* steemconnect integration improved and use_sc2 added
* Docu improved
SteemConnect
* compatible with py2.7
* several improvements
* Examles added
Transactionbuilder
* Integration of steemconnect improved
Wallet
* fix bug
SteemNodeRPC
* fix old and removed parameter n_urls
Doc
* Fix bug in tutorial page

Tutorial about Transactionbuilder fixed

*Skip estimate_virtual_op_num when max_virtual_num is smaller than batch_size
* reverse is removed from estimate_virtual_op_num
* it is assured in history and history_reverse that the estimated start is really before or after the given one.

Account
* Parameter accuracy renamed to stop_diff
* Doku for estimate_virtual_op_num improved
* Several improvements and fixes for estimate_virtual_op_num
CLI
* rewards command improved and more paramter added
Comments
* Assure Amount class for all amounts
* is_pending improved
Doku
* tutorial about showing all posts of an account added
Unit tests
* test_account, test_cli and test_comment improved

Account
* print_info improved (Last Vote added)
* entryId changed to start_entry_id in get_feed, get_blog_entries and get_blog
*rpc.get_account_history moved to _get_account_history
* estimate_account_op added, can be used to fastly get account op numbers from dates or block nums
* history and history_reverse uses estimate_account_op
Exception
* KeyNotFound removed
Memo
* raises MissingKeyError instead of KeyNotFound
Price
* small improvement
Steem
* __repr__ added
Transactionbuilder
* get_potential_signatures, get_transaction_hex and get_required_signatures added
* raises MissingKeyError instead of KeyNotFound
VotesObject
* __contains__, __str__ and __repr__ added
Wallet
* raises MissingKeyError instead of KeyNotFound
Witness
* __contains__, __str__ and __repr__ added to WitnessObject
Steemnoderpc
* small improvements
Operationsid
* producer_reward added
Unit tests
* new function added and tests adapted to changes

Added Use nobroadcast for testing and Clear BlockchainObject Caching