Move IsLvalueReference to the correct place, slightly beef up its documentation.  No bug, r=trivial

--HG--
extra : rebase_source : 5998289e3993cd0384efe0ab7d21b8097dedac2f
Check for an empty string before dereferencing the first character of the string.  No bug, rs=till

--HG--
extra : rebase_source : e4b408f772aa2460db920871086faa37c04356bb
Bug 945533 - Convert various spdy code to use mozilla/Endian.h rather than NSPR endianness conversion functions.  r=mcmanus

--HG--
extra : rebase_source : 11b47056c1e14e0751c351ab199609e07e15399f
Bug 945533 - Convert various server sockets to mozilla/Endian.h.  r=sworkman

--HG--
extra : rebase_source : 9f0df49ac2341c8553dd4a585ec0500d3a32083f
Bug 945533 - Convert various websocket code to mozilla/Endian.h.  r=jduell

--HG--
extra : rebase_source : daf0ee75f70bd86952cf39192d5287657881e9c9
Bug 939367 - Part 2: Move requirements.txt into tools/docs

Trivial change. No review.

DONTBUILD (NPOTB)

--HG--
rename : build/docs/requirements.txt => tools/docs/requirements.txt
Bug 948839 Mark special flag of drag over event true if it's consumed on content r=smaug
Bug 938406 - DataStore - proper event sent when the first revision is created, r=ehsan
Bug 949038 - Fix windows browser build error in jsweakmap.h with generational GC r=terrence
Bug 948423 - Use relookupOrAdd() to insert into has type representation hash map following possible mutation by GC r=sfink
Bug 948914 - Remove redundant default style for <pre> element from quirk.css. r=dbaron
Bug 945634. The fixed-pos anchor point should be in the layer's coordinate system, whose 0,0 is the top-left of the fixed-pos frame. r=mattwoodrow
Bug 948777 - Build netwerk/sctp/src in unified mode; r=jesup
Bug 949360 - Check for Image AllocateBuffer() failures. r=nical
Bug 939614: IonMonkey: Add recompile check, r=jandem
Bug 939614: IonMonkey: Split IonOptions in IonOptions and IonOptimizations, r=jandem
Bug 939614: IonMonkey: Rename IonOption to JitOption, r=jandem
Bug 939614: IonMonkey: Use logic in UsesBeforeCompile to get actual needed usecount, r=jandem
Bug 939614: IonMonkey: Enable reschedule same optimizationLevel if osrPc is different, r=jandem
Bug 939614: IonMonkey: Properly spew recompiling instead of analyzing, r=jandem