* Enable notification for accounts change
* Fixed bugs in extHostAccountManagement.test.ts
* Fixed as commented:
1. Removed AccountWithProviderHandle
2. Use a private dictionary _accounts in ExtHostAccountManagement to cache all accounts and corresponding provider handles.
3. getSecurityToken gets provider handle from _accounts for specified account.
4. Added / changed unit tests for getAllAccounts & getSecurityToken
* 1.Added following functions to namespace accounts
function getAllAccounts(): Thenable<AccountWithProviderHandle[]>;
function getSecurityToken(account: AccountWithProviderHandle): Thenable<{}>;
2.Added class AccountWithProviderHandle as the wrapper for Account
3.Changed function openConnectionDialog of namespace connection to allow connection dialog initialized with specified parameters, i.e., server name, database name, etc.
function openConnectionDialog(provider?: string[], initialConnectionProfile?: IConnectionProfile): Thenable<connection.Connection>;
* Added unit tests for ExtHostAccountManagement.$getAllAccounts
* Initial VS Code 1.21 file copy with patches
* A few more merges
* Post npm install
* Fix batch of build breaks
* Fix more build breaks
* Fix more build errors
* Fix more build breaks
* Runtime fixes 1
* Get connection dialog working with some todos
* Fix a few packaging issues
* Copy several node_modules to package build to fix loader issues
* Fix breaks from master
* A few more fixes
* Make tests pass
* First pass of license header updates
* Second pass of license header updates
* Fix restore dialog issues
* Remove add additional themes menu items
* fix select box issues where the list doesn't show up
* formatting
* Fix editor dispose issue
* Copy over node modules to correct location on all platforms
